How to Fix Stuck Connection when Joinning :
If you can't log in to CTopia this is what u have to do: Turn on virtual hosts and go to growtopia. Don't press "connect" yet. Disconnect you're wifi first (from phone) then press "connect" and wait until you have the error connecting message. You have to wait for 2 of those messages then connect you're wifi back and you're in! If you didn't join keep doing it.
Hope it helped!
Or maybe you can Choose What Contact you Gonna use?