Update app to login?

[sharkcf]

Traceback (most recent call last):
File "C:\Users\victo\nova\forwardgram\forwardgram.py", line 49, in
start(config)
File "C:\Users\victo\nova\forwardgram\forwardgram.py", line 16, in start
client.start()
File "C:\Python39\lib\site-packages\telethon\client\auth.py", line 133, in start
else self.loop.run_until_complete(coro)
File "C:\Python39\lib\asyncio\base_events.py", line 642, in run_until_complete
return future.result()
File "C:\Python39\lib\site-packages\telethon\client\auth.py", line 207, in _start
me = await self.sign_in(phone, code=value)
File "C:\Python39\lib\site-packages\telethon\client\auth.py", line 368, in sign_in
result = await self(request)
File "C:\Python39\lib\site-packages\telethon\client\users.py", line 30, in call
return await self._call(self._sender, request, ordered=ordered)
File "C:\Python39\lib\site-packages\telethon\client\users.py", line 79, in _call
result = await future
telethon.errors.rpcbaseerrors.AuthKeyError: RPCError 406: UPDATE_APP_TO_LOGIN (caused by SignInRequest)

i don't know how to fix that, my telegram already at the last update. This return after i put the code to login