Can not sign in to realms or xbox live

Can not sign in to xbox live so realms are unusable. I was hoping to use realms so my worlds do not get corrupted. In it's current state the game for apple tv is almost unusable, I wish I could write a review for this, spending hours upon hours working on a world to only have it no longer load is quite awful and frustrating. Doing it multiple times hopping for different results is the definition of insanity. I am so fed up with this game right now. Please fix this game so I don't have to hear my 7 year old daughter cry for hours on end when she can no longer open a world she worked months on.