diff --git a/src/admin/users/UserManagementPage.jsx b/src/admin/users/UserManagementPage.jsx
index 99c496d..91c5066 100644
--- a/src/admin/users/UserManagementPage.jsx
+++ b/src/admin/users/UserManagementPage.jsx
@@ -47,7 +47,8 @@ const tdStyle = {
 
 const formatDate = (dateStr) => {
   if (!dateStr) return '—';
-  return new Date(dateStr).toLocaleDateString('ru-RU');
+  const d = new Date(dateStr);
+  return isNaN(d) ? '—' : d.toLocaleDateString('ru-RU');
 };
 
 const UserManagementPage = () => {
@@ -59,6 +60,7 @@ const UserManagementPage = () => {
 
   const [confirmDeleteId, setConfirmDeleteId] = useState(null);
   const [deleting, setDeleting] = useState(false);
+  const [deleteError, setDeleteError] = useState('');
 
   const handleInvite = async (e) => {
     e.preventDefault();
@@ -76,13 +78,14 @@ const UserManagementPage = () => {
 
   const handleDeleteConfirm = async (userId) => {
     setDeleting(true);
+    setDeleteError('');
     try {
       await deleteUser(userId);
-    } catch {
-      // deletion errors surface in the hook's error state
-    } finally {
       setDeleting(false);
       setConfirmDeleteId(null);
+    } catch (err) {
+      setDeleting(false);
+      setDeleteError(err?.message ?? 'Ошибка удаления');
     }
   };
 
@@ -128,6 +131,7 @@ const UserManagementPage = () => {
               value={inviteEmail}
               onChange={(e) => setInviteEmail(e.target.value)}
               required
+              disabled={inviting}
               style={inputStyle}
             />
             <button
@@ -191,45 +195,52 @@ const UserManagementPage = () => {
                     <td style={tdStyle}>{formatDate(user.last_sign_in_at)}</td>
                     <td style={{ ...tdStyle, textAlign: 'right', whiteSpace: 'nowrap' }}>
                       {confirmDeleteId === user.id ? (
-                        <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
-                          <span style={{ fontSize: '0.82rem', color: 'var(--text-muted)' }}>
-                            Вы уверены?
+                        <span style={{ display: 'inline-flex', flexDirection: 'column', alignItems: 'flex-end', gap: '4px' }}>
+                          <span style={{ display: 'inline-flex', alignItems: 'center', gap: '8px' }}>
+                            <span style={{ fontSize: '0.82rem', color: 'var(--text-muted)' }}>
+                              Вы уверены?
+                            </span>
+                            <button
+                              onClick={() => handleDeleteConfirm(user.id)}
+                              disabled={deleting}
+                              style={{
+                                padding: '4px 10px',
+                                background: '#ef4444',
+                                color: '#fff',
+                                border: 'none',
+                                borderRadius: '5px',
+                                fontSize: '0.78rem',
+                                fontWeight: 700,
+                                cursor: deleting ? 'not-allowed' : 'pointer',
+                                opacity: deleting ? 0.7 : 1,
+                                fontFamily: 'var(--font-heading)',
+                              }}
+                            >
+                              Удалить
+                            </button>
+                            <button
+                              onClick={() => { setConfirmDeleteId(null); setDeleteError(''); }}
+                              disabled={deleting}
+                              style={{
+                                padding: '4px 10px',
+                                background: 'transparent',
+                                color: 'var(--text-muted)',
+                                border: '1.5px solid var(--border-light)',
+                                borderRadius: '5px',
+                                fontSize: '0.78rem',
+                                fontWeight: 700,
+                                cursor: 'pointer',
+                                fontFamily: 'var(--font-heading)',
+                              }}
+                            >
+                              Отмена
+                            </button>
                           </span>
-                          <button
-                            onClick={() => handleDeleteConfirm(user.id)}
-                            disabled={deleting}
-                            style={{
-                              padding: '4px 10px',
-                              background: '#ef4444',
-                              color: '#fff',
-                              border: 'none',
-                              borderRadius: '5px',
-                              fontSize: '0.78rem',
-                              fontWeight: 700,
-                              cursor: deleting ? 'not-allowed' : 'pointer',
-                              opacity: deleting ? 0.7 : 1,
-                              fontFamily: 'var(--font-heading)',
-                            }}
-                          >
-                            Удалить
-                          </button>
-                          <button
-                            onClick={() => setConfirmDeleteId(null)}
-                            disabled={deleting}
-                            style={{
-                              padding: '4px 10px',
-                              background: 'transparent',
-                              color: 'var(--text-muted)',
-                              border: '1.5px solid var(--border-light)',
-                              borderRadius: '5px',
-                              fontSize: '0.78rem',
-                              fontWeight: 700,
-                              cursor: 'pointer',
-                              fontFamily: 'var(--font-heading)',
-                            }}
-                          >
-                            Отмена
-                          </button>
+                          {deleteError && (
+                            <span style={{ fontSize: '0.78rem', color: '#ef4444' }}>
+                              {deleteError}
+                            </span>
+                          )}
                         </span>
                       ) : (
                         <button