Log in Crash when i try to join bg

Hello, i don't know if im the only one with this issue.

I try to join bg with my char and it shows an error "Failed to join as a group". I tried to fix this by typing /reload and it worked and i could joing bg but at the moment the log screen for the bg ends it crash my client and shows an error "world server down".

I tried to fix this by deleting my cache folder but now i got stucked in the log in screen and i have to force the close of my wow client.

Is this a bug or there's another way to solve this?

Same here, can't queue for bg. Shows the same "failed to join as a group".

same here tried to que with a group now im stuck in charging screen