In the switch version maincraft crash all times when im playing in my world some times every 1tmn or every hout, and also the microsoft sig in allways don't work automatically

When I start the game never sig ins automatically to my microsoft account, aldo some times delete my skins and I need to re-make them, when I'm playin in my world, with friends or in a server, my minecraft crash, sometimes every 15 mn playng or every hour