I've tried everything I've seen on YouTube or that I could find but it won't authenticate my Microsoft services and it makes it so I can't make or go onto realms I'm on Android

I've tried everything I've seen on YouTube or that I could find but it won't authenticate my Microsoft services and it makes it so I can't make or go onto realms I'm on Android and anytime I try to go into the Minecraft store it just doesn't let me in it's just grays it

out and then says prefab and failed