It's vital to note that removing and reinstalling Telegram, as well as using other third-party applications to log in, will not remove the 'too many attempts' problem. It's important to note that in these circumstances, Telegram acts by restricting the phone number, not the app itself.

To fix the issue of too many attempts, you must log in again after some time has passed. Normally, in the mildest cases of blocking, you will be able to resume the application after 10 minutes. Other types of crashes last for 24 hours, therefore you'll need to log in every 24 hours. If several days pass and you cannot log in, you should contact the company’s technical support