sign in bug + freezing + crashing

on all my devices, minecraft wont open. at first, my game just kept freezing and crashing and now it just wont open at all. i thought it was a device problem so i bought the app again on my new device but whenever i try to sign in, the game freezes. there was one point where i did successfully sign in, but then the game froze. i had to close the app, but when i tried reopening it, the game froze on the loading screen.