This error is implying a licencing issue. Assuming you had access to this app before, can you check with your admin to make sure your licence is still active and appropriate for what you are trying to do?
This can also happen if you have multiple logins (especially on different tenants) and one is cross-threaded with the others. In that case, make sure you are logged out the other account in Sharepoint, Power Apps, and others, before attempting to log back in.
Hope that helps,
Bryan
_________________________________________________________________________________________
Help the community help more users by choosing to "Accept as Solution" if this post met your needs. If you liked the post and want to show some appreciation, please give it a Thumbs Up.
