We also receive this errors since days. For our Premium / Embedded PBI Version & also for alot of our Pro Accounts within PBI Service. The issue is not listed anymore at: https://powerbi.microsoft.com/en-us/support/
Is the issue already solved for some of you?
Now when this issue is appearantly fixed for some, there is another problem preventing report refresh:
Customers in the North Europe region may experience issues with Refreshing and Publishing reports. Engineers are investigating the issue.
It's been more than a week now that I have not been able to refresh my reports. Quite clearly, I am not impressed.