TELEGRAM IS NOT DOWN
By Jitendra | 04, Dec 2021
Telegram has migrated to 64-bit IDs. After updating Telegram, some users may have to wait a minute or two for their chat database to be optimized for 64-bits, but sometimes Telegram stuck on updating.
If your app is not updated:
1. You can send messages, but won't receive any of them.
2. You can't login using outdated app.
✅ SOLUTION
Update your app, or if you are using an outdated unofficial app then switch to the official app. telegram.org/apps
src : tgbeta