Could you back to transmission 2.92 ?
2.93 seems to be banned on most of the trackers...
Searching the Internet for "Transmission 2.93 banned" found no relevant information, and since you provide no further information (a log), I am not able to determine if there is an issue and what the issue is.
That Transmission 2.93 is banned on most of the trackers would be an issue worth reporting at the Transmission github.
Transmission 2.92 is available via github. If you tell me what version of LibreELEC you are using, I will tell you where to find it.