Hi,
one of the users after returning from vacations isn't able to access his environment anymore, the error that is displayed for him says:
Guides isn't set up correctly, or you may not have permission to access it. Contact your administrator or use the documentation link below.
The Dynamics 365 Guides is installed and updated in his environment on admin.powerplatform and he has roles of Basic User / Dynamics 365 Guides Author / Dynamics 365 Guides Operator and System Administrator.