Halo Infinite Flight

I got invited to the Infinite flight and downloaded it on Steam like I would any other game. When I signed into my Xbox account it gave me the “Account is Not Authorized” error. I restarted a few times and now every time I load up the game and click sign in to my Xbox account a blue box with “-101” pops up and doesn’t let me do anything else. Uninstalling and reinstalling didn’t help. Is this the game or could this be my pc?