Says Im out of space (im not) and dosent let me do anything i dont know if its an xbox thing or not ive uninstalled the game and still have a problem please help me fix this

Says Im out of space (im not) and dosent let me do anything i dont know if its an xbox thing or not ive uninstalled the game and still have a problem please help me fix this i know its not my storage though ive checked and its never been close to full and on mc i have just one world of 14 mb