diff --git a/handlers/admin/users/users_handler.py b/handlers/admin/users/users_handler.py
index 7d169091..99a4ec98 100644
--- a/handlers/admin/users/users_handler.py
+++ b/handlers/admin/users/users_handler.py
@@ -1,16 +1,18 @@
 import asyncio
+
 from datetime import datetime, timedelta, timezone
 from typing import Any
 
 import pytz
+
 from aiogram import F, Router, types
 from aiogram.exceptions import TelegramBadRequest
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.state import State, StatesGroup
 from aiogram.types import CallbackQuery, Message
 from aiogram.utils.keyboard import InlineKeyboardBuilder
-
 from config import TOTAL_GB
+
 from database import (
     delete_key,
     delete_user_data,
@@ -24,10 +26,8 @@ from database import (
 from filters.admin import IsAdminFilter
 from handlers.keys.key_utils import delete_key_from_cluster, get_user_traffic, renew_key_in_cluster, update_subscription
 from handlers.utils import sanitize_key_name
-from logger import logger
-from utils.csv_export import export_referrals_csv
-from ..panel.keyboard import AdminPanelCallback, build_admin_back_kb, build_admin_back_btn
-from .keyboard import (
+from keyboards.admin.panel_kb import AdminPanelCallback, build_admin_back_btn, build_admin_back_kb
+from keyboards.admin.users_kb import (
     AdminUserEditorCallback,
     AdminUserKeyEditorCallback,
     build_editor_kb,
@@ -41,6 +41,9 @@ from .keyboard import (
     build_users_key_expiry_kb,
     build_users_key_show_kb,
 )
+from logger import logger
+from utils.csv_export import export_referrals_csv
+
 
 MOSCOW_TZ = pytz.timezone("Europe/Moscow")
 
diff --git a/handlers/captcha.py b/handlers/captcha.py
index 5ae3790f..6a494a94 100644
--- a/handlers/captcha.py
+++ b/handlers/captcha.py
@@ -8,6 +8,7 @@ from aiogram.types import CallbackQuery, Message
 from aiogram.utils.keyboard import InlineKeyboardBuilder
 
 from config import CAPTCHA_EMOJIS
+
 from handlers.texts import CAPTCHA_PROMPT_MSG
 from logger import logger
 from .utils import edit_or_send_message
diff --git a/handlers/coupons.py b/handlers/coupons.py
index 807aa2f2..42d2b5f6 100644
--- a/handlers/coupons.py
+++ b/handlers/coupons.py
@@ -14,11 +14,12 @@ from database import (
     update_coupon_usage_count,
 )
 from handlers.texts import (
+    COUPON_ACTIVATED_SUCCESS_MSG,
+    COUPON_ALREADY_USED_MSG,
     COUPON_INPUT_PROMPT,
     COUPON_NOT_FOUND_MSG,
-    COUPON_ALREADY_USED_MSG,
-    COUPON_ACTIVATED_SUCCESS_MSG,
 )
+
 from .utils import edit_or_send_message
 
 
diff --git a/handlers/keys/key_management.py b/handlers/keys/key_management.py
index 961ebad0..a0a48c1c 100644
--- a/handlers/keys/key_management.py
+++ b/handlers/keys/key_management.py
@@ -52,12 +52,12 @@ from handlers.buttons.add_subscribe import (
 from handlers.keys.key_utils import create_client_on_server, create_key_on_cluster
 from handlers.payments.robokassa_pay import handle_custom_amount_input
 from handlers.texts import (
-    DISCOUNTS,
-    key_message_success,
     CREATING_CONNECTION_MSG,
-    SELECT_TARIFF_PLAN_MSG,
+    DISCOUNTS,
     INSUFFICIENT_FUNDS_MSG,
     SELECT_COUNTRY_MSG,
+    SELECT_TARIFF_PLAN_MSG,
+    key_message_success,
 )
 from handlers.utils import edit_or_send_message, generate_random_email, get_least_loaded_cluster
 from logger import logger
diff --git a/handlers/keys/key_utils.py b/handlers/keys/key_utils.py
index 3a71e8cf..d501bf8c 100644
--- a/handlers/keys/key_utils.py
+++ b/handlers/keys/key_utils.py
@@ -4,6 +4,9 @@ from typing import Any
 import asyncpg
 from py3xui import AsyncApi
 
+from config import ADMIN_PASSWORD, ADMIN_USERNAME, DATABASE_URL, LIMIT_IP, PUBLIC_LINK, SUPERNODE, TOTAL_GB
+from py3xui import AsyncApi
+
 from client import ClientConfig, add_client, delete_client, extend_client_key, get_client_traffic, toggle_client
 from config import ADMIN_PASSWORD, ADMIN_USERNAME, LIMIT_IP, PUBLIC_LINK, SUPERNODE, TOTAL_GB, DATABASE_URL
 from database import get_servers, store_key
diff --git a/handlers/keys/subscriptions.py b/handlers/keys/subscriptions.py
index ccd75c95..bfd5123a 100644
--- a/handlers/keys/subscriptions.py
+++ b/handlers/keys/subscriptions.py
@@ -325,7 +325,7 @@ async def handle_subscription(request: web.Request, old_subscription: bool = Fal
         stored_tg_id = client_data.get("tg_id")
         server_id = client_data["server_id"]
 
-        if not old_subscription and str(tg_id) != str(stored_tg_id):
+        if not old_subscription and int(tg_id) != int(stored_tg_id):
             logger.warning(f"Неверный tg_id для клиента с email {email}.")
             return web.Response(text="❌ Неверные данные. Получите свой ключ в боте.", status=403)
 
diff --git a/handlers/pay.py b/handlers/pay.py
index 9d36f57a..9f40047a 100644
--- a/handlers/pay.py
+++ b/handlers/pay.py
@@ -10,7 +10,9 @@ from config import (
     YOOKASSA_ENABLE,
     YOOMONEY_ENABLE,
 )
+
 from handlers.texts import PAYMENT_METHODS_MSG
+
 from .utils import edit_or_send_message
 
 router = Router()
diff --git a/handlers/start.py b/handlers/start.py
index 290c12c4..0332863d 100644
--- a/handlers/start.py
+++ b/handlers/start.py
@@ -1,4 +1,5 @@
 import os
+
 from typing import Any
 
 from aiogram import F, Router
@@ -32,16 +33,16 @@ from database import (
 from handlers.captcha import generate_captcha
 from handlers.keys.key_management import create_key
 from handlers.texts import (
+    COUPON_SUCCESS_MSG,
+    GIFT_ALREADY_USED_OR_NOT_EXISTS_MSG,
+    NEW_REFERRAL_NOTIFICATION,
+    NOT_SUBSCRIBED_YET_MSG,
+    REFERRAL_SUCCESS_MSG,
+    SUBSCRIPTION_CHECK_ERROR_MSG,
+    SUBSCRIPTION_CONFIRMED_MSG,
+    SUBSCRIPTION_REQUIRED_MSG,
     WELCOME_TEXT,
     get_about_vpn,
-    SUBSCRIPTION_REQUIRED_MSG,
-    NOT_SUBSCRIBED_YET_MSG,
-    SUBSCRIPTION_CONFIRMED_MSG,
-    SUBSCRIPTION_CHECK_ERROR_MSG,
-    GIFT_ALREADY_USED_OR_NOT_EXISTS_MSG,
-    REFERRAL_SUCCESS_MSG,
-    NEW_REFERRAL_NOTIFICATION,
-    COUPON_SUCCESS_MSG,
 )
 from logger import logger
 from .admin.panel.keyboard import AdminPanelCallback
diff --git a/handlers/utils.py b/handlers/utils.py
index 739334c9..871f8228 100644
--- a/handlers/utils.py
+++ b/handlers/utils.py
@@ -65,7 +65,7 @@ async def get_least_loaded_cluster() -> str:
     """
     servers = await get_servers()
     server_to_cluster = {}
-    cluster_loads = {cluster: 0 for cluster in servers.keys()}
+    cluster_loads = dict.fromkeys(servers.keys(), 0)
     for cluster_name, cluster_servers in servers.items():
         for server in cluster_servers:
             server_to_cluster[server["server_name"]] = cluster_name