I was able to get onto it in the past, but recently, when I try to get on via the link on the 5YL site, and I click "accept invite", it then says back, "Whoops... Unable to accept invite."

I don't think I broke any rules on the Discord server, so what's goin' on? Is there something wrong with my laptop? Do I need someone else to invite me onto the Tank's server? If any of you have an answer, please respond.