Hi Ayony
Short answer: You are not likely to connect with Telegram over Tor
Amazon and Google have pulled the plug on Domain Fronting which is used by pluggable transports such as meek, meek_lite... and software such as Telegram and Signal. The only company to currently provide domain fronting is Microsoft ( Azure cloud) is on its way to being shutdown as well, if it hasn’t already.
https://blog.torproject.org/domain-fronting-critical-open-web
Telegram over Tor is insecure so you should find an alternate messaging app.
Related:
https://forums.whonix.org/t/domain-fronting-is-slowly-disappearing/5162