diff --git a/app/services/db_manager.py b/app/services/db_manager.py
index 0ca4774..dcbe357 100644
--- a/app/services/db_manager.py
+++ b/app/services/db_manager.py
@@ -242,7 +242,8 @@ class DatabaseManager:
         """
         return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
     
-    def _is_subscription_expired(self, expire_timestamp: int) -> bool:
+    @staticmethod
+    def _is_subscription_expired(expire_timestamp: int) -> bool:
         """Проверяет, истекла ли подписка"""
 
         current_time = datetime.now(timezone.utc)
diff --git a/app/services/postgres_rep.py b/app/services/postgres_rep.py
index f7a5f6f..82ae162 100644
--- a/app/services/postgres_rep.py
+++ b/app/services/postgres_rep.py
@@ -230,7 +230,7 @@ class PostgresRepository:
             except SQLAlchemyError as e:
                 self.logger.error(f"Ошибка при поиске плана: {plan_name}: {e}")
                 await session.rollback()
-                return Noneэ
+                return None
     
     async def get_plan_by_id(self, plan_id: int) -> Plan | None:
         """