I've just migrated to a MAgento 2.2.5 website.
It was generally successful except for one issue.
When trying to click into a specific product in the admin area I get a 500 error.
The server reports this as follows...
client denied by server configuration: app/etc/config.php
From my understanding this is a permissions issues, right? The etc folder has 755 set. It is strange that is affects products only.
I've cleared cache and index.
Any help would be appreciated.