Microsoft is currently experiencing some issues. Customers may not be able to access their Admin Portals.
Microsofts official Status page: https://status.office365.com/
User Impact: Some users may be unable to access the admin portal. Current status: We've identified a recent service update designed to improve user experience is causing impact. We're reverting the offending update to resolve impact. Scope of impact: Impact is specific to users who are being hosted in Europe, Middle East, and Africa. Next update by: Thursday, February 3, 2022, at 12:00 PM UTC Posted on Thu, 03 Feb 2022 10:17:54 GMT