How can I fix a loop on the sign in pop up of Forza Horizon 5 loading the same login page...

When I launch Forza Horizon 5 and hit enter to start the game, it shows a pop-up to sign in, but the pop-up is not asking for an email, it is asking for the password to my old Microsoft email that is now hacked and deleted (Microsoft won't even let me try to log in with it on their website because the email "no longer exists"). When I hit the words to sign in with a different account, it just loads the same pop-up asking me for a password to my old, non-existent email. When I hit "forgot password" It asks me to enter a valid email because of course the email its asking for a password for does not exist. When I enter my current email into the forgot password box it sends a password change email, but the pop-up loads back the same password query as before for the email that doesn't exist. Signing in with Windows Hello or a security key is useless since the email is gone so there is nothing to sign into.

Does anyone know how to fix this loop or glitch? I just want to log in.

Also when I try to put the screenshot of the pop-up in this text box is says "not found" with a sad face so I don't know how to show the pop-up :/ .

:)