Guild Profile - Server Update fails

Hello,

We recently as a guild have moved from Exodus-Earthen Ring and are now Ashes of Cataclysm on Thrall. When I edit guild information, it will allow me to switch our name but not our server. When selecting our new server and hitting “Change” it says to report this error.

Any help would be greatly appreciated! ^.^

Thank you!
Smushiz