Can't accept or join realms

I can't join any realm, even not my own realm so I deleted the realm I play on (a realm of another person) and asked to get an invite back, but now I can't even accept the invite! I can click as many times as I can on the green check button to accept it, but it does nothing. I mailed Mojang about it because I just want to play with my friends but I will get a response after a week or so. Help me or fix this bug