I too experienced a rollback losing a level and half of XP and items that I had earned. To add to the frustration my son wS playing all day today on his account and when I logged him out so I could play I now get the centepede error. Went back to his account and I can log in just fine the weird thing is I was able to log I to my account last night and relevel back to 12 almost 13 but can't get in today at all