Whenever I go into the minecraft realms menu it's blank and in a few minutes says 'Saving World' and then crashes. But the first time I opened realms it worked and let me join, but after a few minutes it kicked me out and said 'Server Closed'. Then it took me back to the realms menu and crashed. This happens when my friends try to join the server too. Once in a while it let's me in but moves me back to where I was before the first time it crashed. I think that's because when it crashed it didn't save. But then after a few minutes it kickes me out and says 'Server Closed'. I'll attach the crash report file.