diff --git a/app/routes/user_routes.py b/app/routes/user_routes.py
index db92cab..cd5ca4f 100644
--- a/app/routes/user_routes.py
+++ b/app/routes/user_routes.py
@@ -4,6 +4,7 @@ from app.services.db_manager import DatabaseManager
 from sqlalchemy.exc import SQLAlchemyError
 from instance.configdb import get_database_manager
 from pydantic import BaseModel
+from typing import Optional
 from uuid import UUID
 import logging
 
@@ -15,13 +16,14 @@ router = APIRouter()
 # Модели запросов и ответов
 class CreateUserRequest(BaseModel):
     telegram_id: str
-    referrer_id: str
+    referrer_id: Optional[str] = None
 
 class UserResponse(BaseModel):
     id: UUID
     telegram_id: str
-    username: str
+    username: Optional[str]
     balance: float
+    referrer_id: Optional[str]
     created_at: str
     updated_at: str
 
@@ -44,7 +46,7 @@ async def create_user(
             telegram_id=user.telegram_id,
             username=user.username,
             balance=user.balance,
-            referrer_id = user.referrer_id,
+            referrer_id=user.referrer_id if user.referrer_id is not None else None,
             created_at=user.created_at.isoformat(),
             updated_at=user.updated_at.isoformat()
         )
@@ -70,11 +72,12 @@ async def get_user(
 
         logger.info(f"Пользователь найден: ID={user.id}, Username={user.username}")
 
-        user_response = UserResponse(
+        return UserResponse(
             id=user.id,
             telegram_id=user.telegram_id,
             username=user.username,
             balance=user.balance,
+            referrer_id=user.referrer_id if user.referrer_id is not None else None,
             created_at=user.created_at.isoformat(),
             updated_at=user.updated_at.isoformat()
         )
diff --git a/app/services/db_manager.py b/app/services/db_manager.py
index adc3cec..f483f65 100644
--- a/app/services/db_manager.py
+++ b/app/services/db_manager.py
@@ -9,6 +9,7 @@ from dateutil.relativedelta import relativedelta
 from datetime import datetime
 import random
 import string
+from typing import Optional
 import logging
 from uuid import UUID
 
@@ -26,12 +27,16 @@ class DatabaseManager:
         Получает активные подписки пользователя
         """
         return await self.postgres_repo.list_active_tickets(user_id)
-    async def create_user(self, telegram_id: str, referrer_id: str):
+    
+    async def create_user(self, telegram_id: str, referrer_id: Optional[str]= None):
         """
         Создаёт пользователя.
         """
-        username = self.generate_string(6)
-        return await self.postgres_repo.create_user(telegram_id, username, str)
+        try:
+            username = self.generate_string(6)
+            return await self.postgres_repo.create_user(telegram_id, username, referrer_id)
+        except Exception as e:
+            self.logger.error(f"Ошибка при создании пользователя:{e}")
 
     async def get_user_by_telegram_id(self, telegram_id: str):
         """
diff --git a/instance/model.py b/instance/model.py
index 05ca613..a4b62d4 100644
--- a/instance/model.py
+++ b/instance/model.py
@@ -23,18 +23,19 @@ class User(Base):
     __tablename__ = 'users'
 
     id = Column(UUID(as_uuid=True), primary_key=True, default=generate_uuid)
-    telegram_id = Column(String, unique=True, nullable=False)
+    telegram_id = Column(String, unique=True, nullable=False)  # telegram_id как уникальный идентификатор
     username = Column(String)
     balance = Column(Numeric(10, 2), default=0.0)
-    referrer_id = Column(UUID(as_uuid=True), ForeignKey('users.id'), nullable=True)  # Кто пригласил
+    referrer_id = Column(String, ForeignKey('users.telegram_id'), nullable=True)  # Ссылка на telegram_id
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
-    referrals = relationship("User", backref="referrer", remote_side=[id])  # Список рефералов
+    referrals = relationship("User", backref="referrer", remote_side=[telegram_id])  # Ссылка на telegram_id
     subscriptions = relationship("Subscription", back_populates="user")
     transactions = relationship("Transaction", back_populates="user")
     admins = relationship("Administrators", back_populates="user")
 
+
 """Подписки"""
 class Subscription(Base):
     __tablename__ = 'subscriptions'