I try to load into my Minecraft world, and it just says "There was a problem loading into this world"

So I was playing my Minecraft world then I log out to get off my Xbox and when I got back onto the Minecraft and I tried to load into my world all it said was "There was a problem loading into this world." So I uninstalled Minecraft and reinstall it but that didn't work and I restarted my Xbox and that didn't work.