error

Task exception was never retrieved
future: <Task finished coro=<Dispatcher._process_polling_updates() done, defined at C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\dispatcher.py:409> exception=RuntimeError('Task <Task pending coro=<Handler.notify() running at C:\\Users\\DNS\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python37\\site-packages\\aiogram\\dispatcher\\handler.py:116> cb=[gather.<locals>._done_callback() at C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.7_3.7.2544.0_x64__qbz5n2kfra8p0\\lib\\asyncio\\tasks.py:691]> got Future <Future pending cb=[_chain_future.<locals>._call_check_cancel() at C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.7_3.7.2544.0_x64__qbz5n2kfra8p0\\lib\\asyncio\\futures.py:351]> attached to a different loop')>
Traceback (most recent call last):
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\dispatcher.py", line 417, in _process_polling_updates
    for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\dispatcher.py", line 238, in process_updates
    return await asyncio.gather(*tasks)
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\dispatcher.py", line 259, in process_update
    return await self.message_handlers.notify(update.message)
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\dispatcher.py", line 1396, in wrapped
    return await func(*args, **kwargs)
  File "A:/test_bot/main.py", line 113, in account_message
    user = await BotUser(user=message.from_user).fetch()
  File "A:\test_bot\db_worker.py", line 55, in fetch
    response = await db.users.find_one({'user_id': self.user_id}, {'_id': 0})
RuntimeError: Task <Task pending coro=<Handler.notify() running at C:\Users\DNS\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\aiogram\dispatcher\handler.py:116> cb=[gather.<locals>._done_callback() at C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.2544.0_x64__qbz5n2kfra8p0\lib\asyncio\tasks.py:691]> got Future <Future pending cb=[_chain_future.<locals>._call_check_cancel() at C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.2544.0_x64__qbz5n2kfra8p0\lib\asyncio\futures.py:351]> attached to a different loop