Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello,
Have you tried resetting your Microsoft Account password and see if it helps?
Open an InPrivate window in Edge or an incognito tab (CTRL + SHIFT + N) in Chrome.
Go to this link here to reset your Microsoft Account password.
https://account.live.com/ResetPassword.aspx
(Copy and paste the link above)
Once the password reset is successful,
Launch the private window again, and see if you can sign in with your Microsoft account on the link below.
If you are getting any error during the password reset process, let me know.