Помогите с бд

Ошибка при бд, че делать могу бд скинут

текст

Task exception was never retrieved
future: <Task finished name='Task-11' coro=<Dispatcher._process_polling_updates() done, defined at C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\dispatcher.py:407> exception=TypeError("float() argument must be a string or a real number, not 'NoneType'")>
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 415, in _process_polling_updates
for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 235, in process_updates
return await asyncio.gather(*tasks)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\handler.py", line 117, in notify
response = await handler_obj.handler(*args, **partial_data)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 256, in process_update
return await self.message_handlers.notify(update.message)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiogram\dispatcher\handler.py", line 117, in notify
response = await handler_obj.handler(*args, **partial_data)
File "C:\Users\Administrator\Desktop\casic\bot\handlers\profile.py", line 108, in profile
ref_today_profit = float(ref_today) * (float(perc) / 100)
TypeError: float() argument must be a string or a real number, not 'NoneType'