It means that the backup codes you submitted didn't work. Please double-check if they are correct or expired or not.

Notice:
Each backup code only could be valid for ONE time. When you try to get backup codes on Origin, a gray code means it expired. Please click the button 'Create New Codes' below to get black codes that mean they're valid.

After you check that, please withdraw player(s) and submit account info(including email, password, and valid backup codes) again.