Minecraft is freezing and doesn’t work Microsoft account iOS

I was playing Minecraft with my friends yesterday and Minecraft just crashed the whole time and today Minecraft doesn’t open, today Minecraft is only freezing and Xbox account/Microsoft account doesn’t start
I can’t do anything. I cancelled and reinstalled Minecraft but it doesn’t work!
I can’t play with friends and create worlds. Without Microsoft account Minecraft work but I want to play with my friends and join servers. Please fix this bug. It’s the worst bug ever.
Minecraft is my favorite game.
Do something. If you want to contact me
(Microsoft gamertag: obsc4re)
I play Minecraft on my iPhone X