You can always type the code /skywars, /opprison, /fcove to join any server. While that bug is not fixed you should use the commands I told you. If you don't know any server join command you can ask to me
I also reported this bug to
@cloakfox and he fixed it. If the error persists you should open an thread in Bug Reports section following this template:
http://www.mcfoxcraft.com/threads/bug-report-template.26/
[doublepost=1476202936,1476195300][/doublepost]
@Baest,
@cloakfox,
@jayxkrazies,
@C2Obezerk // Zerky one of you can close this?