You can try to use qbittorrent:
> close utorrent, go to https://www.gaytor.rent/mytorrents.php
> download one of the problematic torrents
> add it to qbittorrent, set the download location so that it checks all files and starts seeding (if it stays stalled, you have set the wrong download path)

see if it starts uploading properly.

@ianfontinell I’m going to do what you suggested to test.
However, I removed the old torrents from my computer, so that might be the problem.
For the one I uploaded now with the title “amateur,” are you able to download it?
Thanks a lot in advance for your help.

@jaimeonze said:
@ianfontinell Where can I check this?

click in one of the torrents, and in the tracker tab check if the status is "working"
no screenshot required, only check if it says working.

apart from that, try pausing all your torrents, and leave only one of them seeding