SOLVED An error occured in xlive function

I got this message everytime i try start the game: "An error occured in xlive function Login to "Celeste Fan Prjocet" server failed (invalid login information). ". It first occured, when the servers were off-line today for the update, which is logical. But here, several hours later it still occurs every time i try to login.

Edit: Problem solved by running a third game scan, but now, when you pick up loot from the treasure guards, the ?-icons doesn't dissapear, and you only get one package, regardless of how many guards there are.

Final edit () Problem with the ?-icons not dissapearing after pick up loot and only recieving one package of loot has vanished after latest restart.