I have a lot of SharePoint site-collections (SharePoint 2016 on-premises) where I installed my add-in. All is working correctly but there is a problem in a single site-collection.
In the problematic site the users get always error 500 when they call
https://the-problematic-site/_api/web/AppTiles?$select=Target
The problem is present only with normal users (readers or collaborators), the administrators can call the API without any problem. All the site-collection are provided with the same PowerShell routine.
I can't find the details of the error in the event viewer.
Thank you