We are working with one Powerapp in my company since october 2020, until now without any issues. About 50 people are working with this app, all with either an E3 or Office 365 premium license.
There are no connector in use, the app works with two SharePoint lists and Office365Users and Office365Groups.
Today, two users messaged us that they get the error "You need a current plan or trial to use PowerApps".
Both users had no issue with the app before and still have "PowerApps for Office 365" selcted in the license and apps section of the user profile in the admin center.
What could be the issue here?