Loading in the game issue

Hello! Me and my friend have decided to play again after about a year and a half. I’m on Xbox and it loaded up fine for me. He is having an issue I never really seen though. He’s on pc and he loads into the game up to the title screen but then it says account error when he “taps to continue”. He can also only get this far if he runs it as an administrator. He has redownloaded, tried to repair it just in case. Anything anyone can think of or have dealt with before? Thanks in advance!