Can't join guilds

I left my old guild but now I can't recieve any new guild invitations. People are saying that it says I'm still in a guild but when I check the guild window, it clearly shows I'm not in one. Any ideas?

Probably another glitch from this mass update. Have you tried entirely closing the game then restarting ?

Not sure what fixed it, but I can receive invitations now, thanks for the reply!