How to solve the problem with authorization through telegram on the site?

Question

Django

There was a problem with authorization on the site using the telegram.

The domain works fine (the button for authorization appears), but when redirecting to Telegram authorization, a dump occurs (bot domain invalid) and an error is returned from the cart. It is not clear where the error is (starting from the moment authorization was initiated) and how to fix it (we dug into the code, but did not find anything on our side).

•The domain for the bot is set
•web client on django

How to solve the problem?