Due to a glitch I have managed to delete the Despicable Me Minion Rush (Windows App Store) game from my achievements list (via Xbox 360) as it was showing no achievements. However I had got some achievements in-game. But now the game will not login to Xbox Live so I am unable to earn an further achievements or purchase anything from the in-game store. (Transaction failed (-6003)).
Please could someone let me know if and how to get the game to login to Xbox.