Resolved Not able to join A server

I've been playing quite a while on one of WonderLands' servers now but I suddenly can't join it
5.135.189.29:27015 is the ip
http://prntscr.com/je91vb this is what it shows when i try to join.
I checked to see if I were banned and I'm not. I did try once to join with an alt to see if it was client problems but it wasn't, also all other servers still work.
So I'm really confused to what's wrong here