@Gaydio This can happen if the torrent has been removed from the system, but if you get that message every time you click on a link then there's some other problem.
Try clicking on a few of the very newest torrents from the search page. If none of them work, try logging in again, and try them again. In order to stay logged in, you need to have cookies enabled for the gaytor.rent site. If they're disabled, the system will likely consider you always logged out.
If indeed everything gives you this problem when you're logged in, I suggest contacting the help desk.