If you are using "Transmission Web Interface" it is possible that a host server is blocking you ... Regardless of torrent client it will work properly if it is configured correctly ... I tried Transmission 300 and everything works fine ...
Screenshot_1.jpg
Try different client and uninstall if you are not satisfied:
https://www.softwaretestinghelp.com/best-torrent-clients/
Transmission Guide:
https://helpdeskgeek.com/how-to/using-the-transmission-web-interface/
Transmission Guide [Port Forwarding]:
https://trac.transmissionbt.com/wiki/PortForwardingGuide
If it doesn't resolve your issue ask helpdesk:
https://www.gaytorrent.ru/helpdesk.php
[If this answer your question pls! Upvote] ...