Cant sing on my xbox account MCPE

Hi

 

I bought MCPE before some days to play it with my girlfriend (she is currently in a different country) and it all went smoothly and everything was working fine until today. It started when I wanted to get in her world, it was loading longer than usual and it ended with me getting a text saying 

"Connection timed out.

Unable to connect to world." 

Then later I couldn't even see her world although she was in it.

I tried to sing out from my Microsoft account hoping it will work again if I sing in again but no, whenever I tried to sing out, the game would crash, and I would end up on home screen.

 

I then proceeded to reinstall game and now I can't even sing in my Microsoft account, the game always crashes and I end up on home screen.

I even have a video https://youtu.be/nV6Sae-Yypk

And so I was wondering if something can be done in this matter

 

Warm regards.

 

 

 

edit:

now the same thing happened to my gf