Notice that the window reports a URL that contains & multiple times. This is not how a download link should be. Instead of & it was supposed to be just &

But the issue is that the RSS feed is a XML file, and in XML files if you use & it will not be treated as a text character, instead it's treated as a part of the XML code.

To fix this, & is used instead. When the XML is parsed and the torrent application reads the link, the & is processed as the character & and the link works as expected.

The issue with the XML created by GayTorrent is that instead of having & in the URL link, it was mistakenly coded to have & so when the torrent client is trying to read the link, it indeed sees the & as a simple & character, but after it theres an additional amp; that shouldn't be there.

tl/dr: Miscoded XML, nothing you can do.