Hey Adisorn,
Looks like you created new modules and deleted the user module role,
And as the user role was set to ‘User’, it is trying to access the module role,
Now, for removing the error, go to domain model→ Course entity→ access rule tab→ remove the access rule for userRole ‘User’.
You can refer to the image below,
Let me know if you face any issues,
Hope it helps!