Hi there friends,
Right now there is a known issue with guild services. This is for chat, events, rosters, and other related guild functions. The proper teams are aware of the issue and we hope to have it resolved soon.
As of right now, we ask for you to wait until Tuesday resets and then post back if still happening. While we hope it is resolved then, here in support, we can only gather the status.
/Nathardrick