So a while ago I downloaded the Necromantic pack (for castle crashers) on my account while i was on my friends xbox. when I got home I re-downloaded but I wasn't able to play it. each time I go on it say memory corrupt. What I have tried is to clear systems caches, re-downloaded after deleting the add-on and the game, resetting the stats. but nothing I tried worked. so if you have a way to fix it please let me know.