diff --git a/.flake8 b/.flake8
new file mode 100644
index 00000000..63d91628
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,6 @@
+[flake8]
+max-line-length = 200
+ignore = E203, E266, E501, W503, F541, E704, W293, W291, E126, E121, E123, E128, E302,E131,E231,W292
+max-complexity = 25
+select = B, C, E, F, W, T4, B9
+exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,.txt
\ No newline at end of file
diff --git a/.isort.cfg b/.isort.cfg
new file mode 100644
index 00000000..ffc56c98
--- /dev/null
+++ b/.isort.cfg
@@ -0,0 +1,3 @@
+[settings]
+profile=black
+line_length = 200
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..1f142115
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+formatting:
+	@black . && isort . && flake8
diff --git a/auth.py b/auth.py
index ee0e238a..2eeae90a 100644
--- a/auth.py
+++ b/auth.py
@@ -50,7 +50,7 @@ async def link(session, server_id: str, client_id: str, email: str):
         raise Exception("Не удалось получить данные клиентов.")
 
     inbounds = response["obj"][0]
-    settings = json.loads(inbounds["settings"])
+    # settings = json.loads(inbounds["settings"])
 
     stream_settings = json.loads(inbounds["streamSettings"])
     tcp = stream_settings.get("network", "tcp")
diff --git a/bot.py b/bot.py
index 7e0744b6..9bcefb32 100644
--- a/bot.py
+++ b/bot.py
@@ -2,12 +2,6 @@ from aiogram import Bot, Dispatcher, Router
 from aiogram.fsm.storage.memory import MemoryStorage
 
 from config import API_TOKEN, FREEKASSA_ENABLE, YOOKASSA_ENABLE
-
-bot = Bot(token=API_TOKEN)
-storage = MemoryStorage()
-dp = Dispatcher(bot=bot, storage=storage)
-router = Router()
-
 from handlers import commands, notifications, profile, start
 from handlers.admin import admin, admin_panel, user_editor
 from handlers.keys import key_management, keys
@@ -15,6 +9,12 @@ from handlers.payment import freekassa_pay, yookassa_pay
 from middlewares.admin import AdminMiddleware
 from middlewares.logging import UserActivityMiddleware
 
+bot = Bot(token=API_TOKEN)
+storage = MemoryStorage()
+dp = Dispatcher(bot=bot, storage=storage)
+router = Router()
+
+
 dp.include_router(admin.router)
 dp.include_router(admin_panel.router)
 dp.include_router(user_editor.router)
diff --git a/client.py b/client.py
index 3aca9b5a..ac4fb3ca 100644
--- a/client.py
+++ b/client.py
@@ -69,7 +69,8 @@ async def reset_client_traffic(session, server_id: str, email: str) -> bool:
         async with session.post(url, headers=headers) as response:
             if response.status == 200:
                 logger.info(
-                    f"Трафик клиента {email} успешно сброшен на сервере {server_id}")
+                    f"Трафик клиента {email} успешно сброшен на сервере {server_id}"
+                )
                 return True
             else:
                 logger.error(
@@ -78,7 +79,8 @@ async def reset_client_traffic(session, server_id: str, email: str) -> bool:
                 return False
     except Exception as e:
         logger.error(
-            f"Ошибка при попытке сброса трафика клиента {email} на сервере {server_id}: {e}")
+            f"Ошибка при попытке сброса трафика клиента {email} на сервере {server_id}: {e}"
+        )
         return False
 
 
@@ -136,8 +138,7 @@ async def extend_client_key(
             ),
         }
 
-        headers = {"Content-Type": "application/json",
-                   "Accept": "application/json"}
+        headers = {"Content-Type": "application/json", "Accept": "application/json"}
 
         try:
             async with session.post(
@@ -146,8 +147,7 @@ async def extend_client_key(
                 headers=headers,
             ) as response:
                 logger.info(f"POST {response.url} Status: {response.status}")
-                logger.info(
-                    f"POST Request Data: {json.dumps(payload, indent=2)}")
+                logger.info(f"POST Request Data: {json.dumps(payload, indent=2)}")
                 response_text = await response.text()
                 logger.info(f"POST Response: {response_text}")
 
@@ -190,8 +190,7 @@ async def extend_client_key_admin(
         ),
     }
 
-    headers = {"Content-Type": "application/json",
-               "Accept": "application/json"}
+    headers = {"Content-Type": "application/json", "Accept": "application/json"}
 
     try:
         async with session.post(
diff --git a/database.py b/database.py
index 37fba5b0..fd03473b 100644
--- a/database.py
+++ b/database.py
@@ -25,7 +25,7 @@ async def init_db():
             client_id TEXT NOT NULL,
             email TEXT NOT NULL,
             created_at BIGINT NOT NULL,
-            expiry_time BIGINT NOT NULL,         
+            expiry_time BIGINT NOT NULL,
             key TEXT NOT NULL,
             server_id TEXT NOT NULL DEFAULT 'server1',  -- поле для идентификатора сервера
             notified BOOLEAN NOT NULL DEFAULT FALSE,  -- новое поле для статуса уведомления
@@ -170,8 +170,8 @@ async def update_balance(tg_id: int, amount: float):
     conn = await asyncpg.connect(DATABASE_URL)
     await conn.execute(
         """
-        UPDATE connections 
-        SET balance = balance + $1 
+        UPDATE connections
+        SET balance = balance + $1
         WHERE tg_id = $2
     """,
         amount,
@@ -236,7 +236,7 @@ async def handle_referral_on_balance_update(tg_id: int, amount: float):
 
         await conn.execute(
             """
-            UPDATE referrals SET reward_issued = TRUE 
+            UPDATE referrals SET reward_issued = TRUE
             WHERE referrer_tg_id = $1 AND referred_tg_id = $2
         """,
             referrer_tg_id,
diff --git a/handlers/admin/admin.py b/handlers/admin/admin.py
index b27fed36..6106ce79 100644
--- a/handlers/admin/admin.py
+++ b/handlers/admin/admin.py
@@ -8,13 +8,7 @@ from loguru import logger
 from auth import login_with_credentials
 from client import extend_client_key_admin
 from config import ADMIN_PASSWORD, ADMIN_USERNAME, DATABASE_URL
-from database import (
-    add_balance_to_client,
-    check_connection_exists,
-    get_client_id_by_email,
-    get_tg_id_by_client_id,
-    update_key_expiry,
-)
+from database import add_balance_to_client, check_connection_exists, get_client_id_by_email, get_tg_id_by_client_id, update_key_expiry
 
 router = Router()
 
diff --git a/handlers/admin/admin_panel.py b/handlers/admin/admin_panel.py
index 16c4fb59..1f5af451 100644
--- a/handlers/admin/admin_panel.py
+++ b/handlers/admin/admin_panel.py
@@ -6,11 +6,7 @@ from aiogram import F, Router, types
 from aiogram.filters import Command
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.state import State, StatesGroup
-from aiogram.types import (
-    CallbackQuery,
-    InlineKeyboardButton,
-    Message,
-)
+from aiogram.types import CallbackQuery, InlineKeyboardButton, Message
 from aiogram.utils.keyboard import InlineKeyboardBuilder
 
 from backup import backup_database
@@ -45,11 +41,9 @@ async def handle_admin_command(message: types.Message, is_admin: bool):
                 text="Отправить сообщение всем клиентам", callback_data="send_to_alls"
             )
         )
-        builder.row(InlineKeyboardButton(
-            text="Создать бэкап", callback_data="backups"))
+        builder.row(InlineKeyboardButton(text="Создать бэкап", callback_data="backups"))
         builder.row(
-            InlineKeyboardButton(text="Перезапустить бота",
-                                 callback_data="restart_bot")
+            InlineKeyboardButton(text="Перезапустить бота", callback_data="restart_bot")
         )
         await bot.send_message(
             message.chat.id, "Панель администратора.", reply_markup=builder.as_markup()
@@ -84,8 +78,7 @@ async def user_stats_menu(callback_query: CallbackQuery, is_admin: bool):
 
             builder = InlineKeyboardBuilder()
             builder.row(
-                InlineKeyboardButton(
-                    text="Назад", callback_data="back_to_admin_menu")
+                InlineKeyboardButton(text="Назад", callback_data="back_to_admin_menu")
             )
 
             await callback_query.message.edit_text(
@@ -119,7 +112,7 @@ async def handle_backup(message: Message, is_admin: bool):
 async def handle_restart(callback_query: CallbackQuery, is_admin: bool):
     if is_admin:
         try:
-            result = subprocess.run(
+            subprocess.run(
                 ["sudo", "systemctl", "restart", "bot.service"],
                 check=True,
                 capture_output=True,
@@ -142,12 +135,10 @@ async def user_editor_menu(callback_query: CallbackQuery, is_admin: bool):
             )
         )
         builder.row(
-            InlineKeyboardButton(text="Поиск по tg_id",
-                                 callback_data="search_by_tg_id")
+            InlineKeyboardButton(text="Поиск по tg_id", callback_data="search_by_tg_id")
         )
         builder.row(
-            InlineKeyboardButton(
-                text="Назад", callback_data="back_to_admin_menu")
+            InlineKeyboardButton(text="Назад", callback_data="back_to_admin_menu")
         )
         await callback_query.message.edit_text(
             "Выберите метод поиска:", reply_markup=builder.as_markup()
@@ -180,11 +171,9 @@ async def back_to_admin_menu(callback_query: CallbackQuery, is_admin: bool):
                 callback_data="send_to_alls",
             )
         )
-        builder.row(InlineKeyboardButton(
-            text="Создать бэкап", callback_data="backups"))
+        builder.row(InlineKeyboardButton(text="Создать бэкап", callback_data="backups"))
         builder.row(
-            InlineKeyboardButton(text="Перезапустить бота",
-                                 callback_data="restart_bot")
+            InlineKeyboardButton(text="Перезапустить бота", callback_data="restart_bot")
         )
         await bot.send_message(
             tg_id, "Панель администратора", reply_markup=builder.as_markup()
diff --git a/handlers/admin/user_editor.py b/handlers/admin/user_editor.py
index 0e58d04d..38d256f1 100644
--- a/handlers/admin/user_editor.py
+++ b/handlers/admin/user_editor.py
@@ -5,16 +5,14 @@ import asyncpg
 from aiogram import F, Router, types
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.state import State, StatesGroup
-from aiogram.types import (CallbackQuery, InlineKeyboardButton,
-                           InlineKeyboardMarkup)
+from aiogram.types import CallbackQuery, InlineKeyboardButton, InlineKeyboardMarkup
 from loguru import logger
 
 from auth import login_with_credentials
 from bot import bot
 from client import delete_client, extend_client_key_admin
 from config import ADMIN_PASSWORD, ADMIN_USERNAME, DATABASE_URL, SERVERS
-from database import (get_client_id_by_email, get_tg_id_by_client_id,
-                      update_key_expiry)
+from database import get_client_id_by_email, get_tg_id_by_client_id, update_key_expiry
 from handlers.admin.admin_panel import back_to_admin_menu
 from handlers.utils import sanitize_key_name
 
@@ -247,7 +245,7 @@ async def handle_key_name_input(message: types.Message, state: FSMContext):
         key_buttons = []
 
         for record in user_records:
-            tg_id = record["tg_id"]
+            # tg_id = record["tg_id"]
             balance = record["balance"]
             email = record["email"]
             key = record["key"]
@@ -450,7 +448,7 @@ async def process_callback_confirm_delete(callback_query: types.CallbackQuery):
             )
 
             if record:
-                email = record["email"]
+                # email = record["email"]
                 response_message = "Ключ успешно удален."
                 back_button = types.InlineKeyboardButton(
                     text="Назад", callback_data="view_keys"
diff --git a/handlers/commands.py b/handlers/commands.py
index 833cb70e..f3e6614b 100644
--- a/handlers/commands.py
+++ b/handlers/commands.py
@@ -10,10 +10,7 @@ from bot import bot
 from config import DATABASE_URL
 from handlers.admin.admin import cmd_add_balance
 from handlers.keys.key_management import handle_key_name_input
-from handlers.payment.yookassa_pay import (
-    ReplenishBalanceState,
-    process_custom_amount_input,
-)
+from handlers.payment.yookassa_pay import ReplenishBalanceState, process_custom_amount_input
 from handlers.profile import process_callback_view_profile
 from handlers.start import start_command
 from handlers.texts import TRIAL
diff --git a/handlers/instructions/instructions.py b/handlers/instructions/instructions.py
index 3d4d41f1..87394869 100644
--- a/handlers/instructions/instructions.py
+++ b/handlers/instructions/instructions.py
@@ -1,8 +1,7 @@
 import os
 
 from aiogram import types
-from aiogram.types import (BufferedInputFile, InlineKeyboardButton,
-                           InlineKeyboardMarkup)
+from aiogram.types import BufferedInputFile, InlineKeyboardButton, InlineKeyboardMarkup
 
 from handlers.texts import INSTRUCTIONS
 
diff --git a/handlers/keys/key_management.py b/handlers/keys/key_management.py
index d27419f8..5b84ce55 100644
--- a/handlers/keys/key_management.py
+++ b/handlers/keys/key_management.py
@@ -6,31 +6,15 @@ import asyncpg
 from aiogram import F, Router
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.state import State, StatesGroup
-from aiogram.types import (
-    CallbackQuery,
-    InlineKeyboardButton,
-    InlineKeyboardMarkup,
-    Message,
-)
+from aiogram.types import CallbackQuery, InlineKeyboardButton, InlineKeyboardMarkup, Message
 
 from bot import bot, dp
-from config import (
-    APP_URL,
-    DATABASE_URL,
-    PUBLIC_LINK,
-    SERVERS,
-)
+from config import APP_URL, DATABASE_URL, PUBLIC_LINK, SERVERS
 from database import add_connection, get_balance, store_key, update_balance
 from handlers.instructions.instructions import send_instructions
-from handlers.profile import process_callback_view_profile
 from handlers.keys.key_utils import create_key_on_server
-from handlers.texts import (
-    KEY,
-    KEY_TRIAL,
-    NULL_BALANCE,
-    RENEWAL_PLANS,
-    key_message_success,
-)
+from handlers.profile import process_callback_view_profile
+from handlers.texts import KEY, KEY_TRIAL, NULL_BALANCE, RENEWAL_PLANS, key_message_success
 from handlers.utils import sanitize_key_name
 
 router = Router()
@@ -61,7 +45,7 @@ async def process_callback_create_key(callback_query: CallbackQuery, state: FSMC
 
 
 async def select_server(callback_query: CallbackQuery, state: FSMContext):
-    selected_server_id = (await state.get_data()).get("selected_server_id")
+    # selected_server_id = (await state.get_data()).get("selected_server_id")
 
     conn = await asyncpg.connect(DATABASE_URL)
     try:
@@ -108,8 +92,8 @@ async def select_server(callback_query: CallbackQuery, state: FSMContext):
 @dp.callback_query(F.data == "confirm_create_new_key")
 async def confirm_create_new_key(callback_query: CallbackQuery, state: FSMContext):
     tg_id = callback_query.from_user.id
-    data = await state.get_data()
-    server_id = data.get("selected_server_id")
+    # data = await state.get_data()
+    # server_id = data.get("selected_server_id")
 
     balance = await get_balance(tg_id)
     if balance < RENEWAL_PLANS["1"]["price"]:
@@ -161,7 +145,7 @@ async def handle_key_name_input(message: Message, state: FSMContext):
     finally:
         await conn.close()
 
-    data = await state.get_data()
+    # data = await state.get_data()
     client_id = str(uuid.uuid4())
     email = key_name.lower()
     current_time = datetime.utcnow()
@@ -185,8 +169,7 @@ async def handle_key_name_input(message: Message, state: FSMContext):
             replenish_button = InlineKeyboardButton(
                 text="Перейти в профиль", callback_data="view_profile"
             )
-            keyboard = InlineKeyboardMarkup(
-                inline_keyboard=[[replenish_button]])
+            keyboard = InlineKeyboardMarkup(inline_keyboard=[[replenish_button]])
             await message.bot.send_message(
                 tg_id,
                 "❗️ Недостаточно средств на балансе для создания подписки на новое устройство.",
diff --git a/handlers/keys/key_utils.py b/handlers/keys/key_utils.py
index 47b43614..a269ba18 100644
--- a/handlers/keys/key_utils.py
+++ b/handlers/keys/key_utils.py
@@ -26,8 +26,7 @@ async def create_key_on_server(server_id, tg_id, client_id, email, expiry_timest
         if not response.get("success", True):
             error_msg = response.get("msg", "Неизвестная ошибка.")
             if "Duplicate email" in error_msg:
-                raise ValueError(
-                    f"Имя {email} уже занято на сервере {server_id}")
+                raise ValueError(f"Имя {email} уже занято на сервере {server_id}")
             else:
                 raise Exception(error_msg)
     except Exception as e:
@@ -35,11 +34,7 @@ async def create_key_on_server(server_id, tg_id, client_id, email, expiry_timest
 
 
 async def renew_server_key(
-        server_id,
-        tg_id, client_id,
-        email,
-        new_expiry_time,
-        reset_traffic=RESET_TRAFFIC
+    server_id, tg_id, client_id, email, new_expiry_time, reset_traffic=RESET_TRAFFIC
 ):
     try:
         session = await login_with_credentials(
@@ -65,8 +60,7 @@ async def delete_key_from_db(client_id):
         conn = await asyncpg.connect(DATABASE_URL)
         await conn.execute("DELETE FROM keys WHERE client_id = $1", client_id)
     except Exception as e:
-        logger.error(
-            f"Ошибка при удалении ключа {client_id} из базы данных: {e}")
+        logger.error(f"Ошибка при удалении ключа {client_id} из базы данных: {e}")
     finally:
         await conn.close()
 
@@ -74,17 +68,19 @@ async def delete_key_from_db(client_id):
 async def delete_key_from_server(server_id, client_id):
     """Удаление ключа с сервера"""
     try:
-        async with login_with_credentials(server_id,
-                                          ADMIN_USERNAME,
-                                          ADMIN_PASSWORD) as session:
+        async with login_with_credentials(
+            server_id, ADMIN_USERNAME, ADMIN_PASSWORD
+        ) as session:
             success = await delete_client(session, server_id, client_id)
 
             if not success:
                 logger.error(
-                    f"Ошибка удаления ключа {client_id} на сервере {server_id}")
+                    f"Ошибка удаления ключа {client_id} на сервере {server_id}"
+                )
     except Exception as e:
         logger.error(
-            f"Ошибка при удалении ключа {client_id} с сервера {server_id}: {e}")
+            f"Ошибка при удалении ключа {client_id} с сервера {server_id}: {e}"
+        )
 
 
 async def update_key_on_server(tg_id, client_id, email, expiry_time, server_id):
@@ -110,8 +106,7 @@ async def update_key_on_server(tg_id, client_id, email, expiry_time, server_id):
                 f"Ошибка при обновлении ключа на сервере {server_id} для {client_id}"
             )
         else:
-            logger.info(
-                f"Ключ успешно обновлен на сервере {server_id} для {client_id}")
+            logger.info(f"Ключ успешно обновлен на сервере {server_id} для {client_id}")
 
     except Exception as e:
         logger.error(
diff --git a/handlers/keys/keys.py b/handlers/keys/keys.py
index 57b3c00a..2c03ed15 100644
--- a/handlers/keys/keys.py
+++ b/handlers/keys/keys.py
@@ -9,38 +9,12 @@ from aiogram.types import BufferedInputFile
 from loguru import logger
 
 from bot import bot
-from config import (
-    APP_URL,
-    DATABASE_URL,
-    PUBLIC_LINK,
-    SERVERS,
-)
-from database import (
-    delete_key,
-    get_balance,
-    store_key,
-    update_balance,
-    update_key_expiry,
-)
-from handlers.texts import (
-    INSUFFICIENT_FUNDS_MSG,
-    KEY_NOT_FOUND_MSG,
-    NO_KEYS,
-    PLAN_SELECTION_MSG,
-    RENEWAL_PLANS,
-    SUCCESS_RENEWAL_MSG,
-    key_message,
-)
-
+from config import APP_URL, DATABASE_URL, PUBLIC_LINK, SERVERS
+from database import delete_key, get_balance, store_key, update_balance, update_key_expiry
+from handlers.keys.key_utils import delete_key_from_db, delete_key_from_server, renew_server_key, update_key_on_server
+from handlers.texts import INSUFFICIENT_FUNDS_MSG, KEY_NOT_FOUND_MSG, NO_KEYS, PLAN_SELECTION_MSG, RENEWAL_PLANS, SUCCESS_RENEWAL_MSG, key_message
 from handlers.utils import handle_error
 
-from handlers.keys.key_utils import (
-    update_key_on_server,
-    delete_key_from_db,
-    renew_server_key,
-    delete_key_from_server
-)
-
 locale.setlocale(locale.LC_TIME, "ru_RU.UTF-8")
 
 router = Router()
@@ -76,8 +50,7 @@ async def process_callback_view_keys(callback_query: types.CallbackQuery):
                 )
                 buttons.append([back_button])
 
-                inline_keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=buttons)
+                inline_keyboard = types.InlineKeyboardMarkup(inline_keyboard=buttons)
                 response_message = (
                     "<b>Это ваши устройства:</b>\n\n"
                     "<i>Нажмите на имя устройства для управления его подпиской.</i>"
@@ -159,8 +132,7 @@ async def process_callback_view_key(callback_query: types.CallbackQuery):
                 expiry_time = record["expiry_time"]
                 server_id = record["server_id"]
 
-                server_name = SERVERS.get(server_id, {}).get(
-                    "name", "мультисервер")
+                server_name = SERVERS.get(server_id, {}).get("name", "мультисервер")
                 expiry_date = datetime.utcfromtimestamp(expiry_time / 1000)
                 current_date = datetime.utcnow()
                 time_left = expiry_date - current_date
@@ -220,11 +192,9 @@ async def process_callback_view_key(callback_query: types.CallbackQuery):
 
                 inline_keyboard.append([back_button])
 
-                keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=inline_keyboard)
+                keyboard = types.InlineKeyboardMarkup(inline_keyboard=inline_keyboard)
 
-                image_path = os.path.join(
-                    os.path.dirname(__file__), "pic_view.jpg")
+                image_path = os.path.join(os.path.dirname(__file__), "pic_view.jpg")
 
                 if not os.path.isfile(image_path):
                     await bot.send_message(tg_id, "Файл изображения не найден.")
@@ -304,7 +274,7 @@ async def process_callback_update_subscription(callback_query: types.CallbackQue
                         )
                     )
 
-                results = await asyncio.gather(*tasks)
+                await asyncio.gather(*tasks)
 
                 await store_key(
                     tg_id,
@@ -326,8 +296,7 @@ async def process_callback_update_subscription(callback_query: types.CallbackQue
                 back_button = types.InlineKeyboardButton(
                     text="🔙 Назад в профиль", callback_data="view_profile"
                 )
-                keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=[[back_button]])
+                keyboard = types.InlineKeyboardMarkup(inline_keyboard=[[back_button]])
 
                 await bot.send_message(
                     tg_id, response_message, reply_markup=keyboard, parse_mode="HTML"
@@ -421,9 +390,9 @@ async def process_callback_renew_key(callback_query: types.CallbackQuery):
             )
 
             if record:
-                email = record["email"]
+                # email = record["email"]
                 expiry_time = record["expiry_time"]
-                current_time = datetime.utcnow().timestamp() * 1000
+                # current_time = datetime.utcnow().timestamp() * 1000
                 keyboard = types.InlineKeyboardMarkup(
                     inline_keyboard=[
                         [
@@ -505,13 +474,12 @@ async def process_callback_confirm_delete(callback_query: types.CallbackQuery):
             )
 
             if record:
-                email = record["email"]
+                # email = record["email"]
                 response_message = "Ключ успешно удален."
                 back_button = types.InlineKeyboardButton(
                     text="Назад", callback_data="view_keys"
                 )
-                keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=[[back_button]])
+                keyboard = types.InlineKeyboardMarkup(inline_keyboard=[[back_button]])
 
                 await delete_key(client_id)
                 await bot.edit_message_text(
@@ -525,14 +493,12 @@ async def process_callback_confirm_delete(callback_query: types.CallbackQuery):
                     try:
                         tasks = []
                         for server_id in SERVERS:
-                            tasks.append(delete_key_from_server(
-                                server_id, client_id))
+                            tasks.append(delete_key_from_server(server_id, client_id))
 
                         await asyncio.gather(*tasks)
 
                     except Exception as e:
-                        logger.error(
-                            f"Ошибка при удалении ключа {client_id}: {e}")
+                        logger.error(f"Ошибка при удалении ключа {client_id}: {e}")
 
                 asyncio.create_task(delete_key_from_servers())
 
@@ -543,8 +509,7 @@ async def process_callback_confirm_delete(callback_query: types.CallbackQuery):
                 back_button = types.InlineKeyboardButton(
                     text="Назад", callback_data="view_keys"
                 )
-                keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=[[back_button]])
+                keyboard = types.InlineKeyboardMarkup(inline_keyboard=[[back_button]])
 
                 await bot.edit_message_text(
                     response_message,
@@ -633,8 +598,7 @@ async def process_callback_renew_plan(callback_query: types.CallbackQuery):
                 back_button = types.InlineKeyboardButton(
                     text="Назад", callback_data="view_profile"
                 )
-                keyboard = types.InlineKeyboardMarkup(
-                    inline_keyboard=[[back_button]])
+                keyboard = types.InlineKeyboardMarkup(inline_keyboard=[[back_button]])
 
                 await bot.send_message(
                     tg_id, response_message, reply_markup=keyboard, parse_mode="HTML"
diff --git a/handlers/keys/trial_key.py b/handlers/keys/trial_key.py
index 4b0bb8f9..117868d8 100644
--- a/handlers/keys/trial_key.py
+++ b/handlers/keys/trial_key.py
@@ -63,16 +63,15 @@ async def generate_and_store_keys(
 
             await conn.execute(
                 """
-                INSERT INTO connections (tg_id, trial) 
-                VALUES ($1, 1) 
-                ON CONFLICT (tg_id) 
+                INSERT INTO connections (tg_id, trial)
+                VALUES ($1, 1)
+                ON CONFLICT (tg_id)
                 DO UPDATE SET trial = 1
             """,
                 tg_id,
             )
         else:
-            logger.error(
-                "Не удалось создать ключ на одном или нескольких серверах.")
+            logger.error("Не удалось создать ключ на одном или нескольких серверах.")
 
     finally:
         await conn.close()
diff --git a/handlers/notifications.py b/handlers/notifications.py
index 898aef88..25f37a03 100644
--- a/handlers/notifications.py
+++ b/handlers/notifications.py
@@ -9,13 +9,7 @@ from auth import login_with_credentials
 from client import delete_client, extend_client_key
 from config import ADMIN_PASSWORD, ADMIN_USERNAME, DATABASE_URL, SERVERS
 from database import delete_key, get_balance, update_balance, update_key_expiry
-from handlers.texts import (
-    KEY_EXPIRY_10H,
-    KEY_EXPIRY_24H,
-    KEY_RENEWAL_FAILED,
-    KEY_RENEWED,
-    RENEWAL_PLANS,
-)
+from handlers.texts import KEY_EXPIRY_10H, KEY_EXPIRY_24H, KEY_RENEWAL_FAILED, KEY_RENEWED, RENEWAL_PLANS
 
 router = Router()
 
@@ -254,13 +248,13 @@ async def handle_expired_keys(bot: Bot, conn: asyncpg.Connection, current_time:
             f"Время истечения ключа: {expiry_time} (дата: {expiry_date}), Текущее время: {current_date}, Оставшееся время: {time_left}."
         )
 
-        if time_left.total_seconds() <= 0:
-            days_left_message = "Ключ истек"
-        elif time_left.days > 0:
-            days_left_message = f"Осталось дней: <b>{time_left.days}</b>"
-        else:
-            hours_left = time_left.seconds // 3600
-            days_left_message = f"Осталось часов: <b>{hours_left}</b>"
+        # if time_left.total_seconds() <= 0:
+        #     days_left_message = "Ключ истек"
+        # elif time_left.days > 0:
+        #     days_left_message = f"Осталось дней: <b>{time_left.days}</b>"
+        # else:
+        #     hours_left = time_left.seconds // 3600
+        #     days_left_message = f"Осталось часов: <b>{hours_left}</b>"
 
         message_expired = f"Ваш ключ {email} истек и был удален!\n\n Перейдите в профиль для создания нового ключа"
         button_profile = types.InlineKeyboardButton(
diff --git a/handlers/payment/yookassa_pay.py b/handlers/payment/yookassa_pay.py
index 9944c960..fc791543 100644
--- a/handlers/payment/yookassa_pay.py
+++ b/handlers/payment/yookassa_pay.py
@@ -10,8 +10,7 @@ from yookassa import Configuration, Payment
 
 from bot import bot
 from config import YOOKASSA_ENABLE, YOOKASSA_SECRET_KEY, YOOKASSA_SHOP_ID
-from database import (add_connection, check_connection_exists, get_key_count,
-                      update_balance)
+from database import add_connection, check_connection_exists, get_key_count, update_balance
 from handlers.profile import process_callback_view_profile
 from handlers.texts import PAYMENT_OPTIONS
 
@@ -128,7 +127,7 @@ async def process_amount_selection(
     await state.update_data(amount=amount)
     await state.set_state(ReplenishBalanceState.waiting_for_payment_confirmation)
 
-    state_data = await state.get_data()
+    # state_data = await state.get_data()
     customer_name = callback_query.from_user.full_name
     customer_id = callback_query.from_user.id
 
diff --git a/handlers/profile.py b/handlers/profile.py
index a868675c..ea6539ba 100644
--- a/handlers/profile.py
+++ b/handlers/profile.py
@@ -7,11 +7,9 @@ from aiogram.utils.keyboard import InlineKeyboardBuilder
 from loguru import logger
 
 from bot import bot
-from config import (CHANNEL_URL, FREEKASSA_ENABLE, PAYMENT_METHOD,
-                    YOOKASSA_ENABLE)
+from config import CHANNEL_URL, FREEKASSA_ENABLE, PAYMENT_METHOD, YOOKASSA_ENABLE
 from database import get_balance, get_key_count, get_referral_stats
-from handlers.texts import (get_referral_link, invite_message_send,
-                            profile_message_send)
+from handlers.texts import get_referral_link, invite_message_send, profile_message_send
 
 router = Router()
 
diff --git a/handlers/start.py b/handlers/start.py
index 112925dc..40f76706 100644
--- a/handlers/start.py
+++ b/handlers/start.py
@@ -3,12 +3,7 @@ import os
 import asyncpg
 from aiogram import F, Router
 from aiogram.filters import Command
-from aiogram.types import (
-    BufferedInputFile,
-    CallbackQuery,
-    InlineKeyboardButton,
-    Message,
-)
+from aiogram.types import BufferedInputFile, CallbackQuery, InlineKeyboardButton, Message
 from aiogram.utils.keyboard import InlineKeyboardBuilder
 from loguru import logger
 
@@ -27,26 +22,22 @@ async def send_welcome_message(chat_id: int, trial_status: int):
     builder = InlineKeyboardBuilder()
     if trial_status == 0:
         builder.row(
-            InlineKeyboardButton(text="🔗 Подключить VPN",
-                                 callback_data="connect_vpn")
+            InlineKeyboardButton(text="🔗 Подключить VPN", callback_data="connect_vpn")
         )
     builder.row(
-        InlineKeyboardButton(text="👤 Мой профиль",
-                             callback_data="view_profile")
+        InlineKeyboardButton(text="👤 Мой профиль", callback_data="view_profile")
     )
     builder.row(
         InlineKeyboardButton(text="📞 Поддержка", url=SUPPORT_CHAT_URL),
         InlineKeyboardButton(text="📢 Наш канал", url=CHANNEL_URL),
     )
-    builder.row(InlineKeyboardButton(
-        text="🔒 О VPN", callback_data="about_vpn"))
+    builder.row(InlineKeyboardButton(text="🔒 О VPN", callback_data="about_vpn"))
 
     if os.path.isfile(image_path):
         with open(image_path, "rb") as image_from_buffer:
             await bot.send_photo(
                 chat_id=chat_id,
-                photo=BufferedInputFile(
-                    image_from_buffer.read(), filename="pic.jpg"),
+                photo=BufferedInputFile(image_from_buffer.read(), filename="pic.jpg"),
                 caption=WELCOME_TEXT,
                 parse_mode="HTML",
                 reply_markup=builder.as_markup(),
@@ -110,8 +101,7 @@ async def handle_connect_vpn(callback_query: CallbackQuery):
 
         builder = InlineKeyboardBuilder()
         builder.row(
-            InlineKeyboardButton(text="👤 Мой профиль",
-                                 callback_data="view_profile")
+            InlineKeyboardButton(text="👤 Мой профиль", callback_data="view_profile")
         )
 
         builder.row(
@@ -148,8 +138,7 @@ async def handle_about_vpn(callback_query: CallbackQuery):
     await callback_query.message.delete()
 
     builder = InlineKeyboardBuilder()
-    builder.row(InlineKeyboardButton(
-        text="⬅️ Назад", callback_data="back_to_menu"))
+    builder.row(InlineKeyboardButton(text="⬅️ Назад", callback_data="back_to_menu"))
 
     await callback_query.message.answer(
         ABOUT_VPN, parse_mode="HTML", reply_markup=builder.as_markup()
diff --git a/handlers/utils.py b/handlers/utils.py
index bab8c9c5..9ed382c6 100644
--- a/handlers/utils.py
+++ b/handlers/utils.py
@@ -1,11 +1,11 @@
 import random
 import re
 
-from bot import bot
-
-from config import SERVERS
 from loguru import logger
 
+from bot import bot
+from config import SERVERS
+
 
 def sanitize_key_name(key_name: str) -> str:
     return re.sub(r"[^a-z0-9@._-]", "", key_name.lower())
@@ -46,4 +46,4 @@ async def handle_error(tg_id, callback_query, message):
         await bot.send_message(tg_id, message, parse_mode="HTML")
 
     except Exception as e:
-        logger.error(f"Ошибка при обработке ошибки: {e}")
\ No newline at end of file
+        logger.error(f"Ошибка при обработке ошибки: {e}")
diff --git a/middlewares/admin.py b/middlewares/admin.py
index 6c6fccf1..753d8d3f 100644
--- a/middlewares/admin.py
+++ b/middlewares/admin.py
@@ -1,4 +1,3 @@
-from functools import wraps
 from typing import Any, Awaitable, Callable, Dict
 
 from aiogram import BaseMiddleware
diff --git a/middlewares/database.py b/middlewares/database.py
index 759004fb..c2d05102 100644
--- a/middlewares/database.py
+++ b/middlewares/database.py
@@ -1,4 +1,3 @@
-from functools import wraps
 from typing import Any, Awaitable, Callable, Dict
 
 import asyncpg