There appears to be a problem with the service at the moment. This issue is being reported by multiple users as I am typing this message. You may need to wait this out for a couple of minutes to a few hours.
Microsoft might already be aware and possibly investigating the issue as we speak.
DISCLAIMER: MS community is a user-to-user forum. We do not have access to any MS Tools that can be used to directly assist with account or login-related issues.
Kind Regards,