Hi,
The issue here is that you haven’t mentioned the role on your Drupal site. The Application portal is the tool that applies the permissions, but it can’t do that if there is no role defined on the Drupal site.
Simply add the name of the role at theory.cern/admin/people/roles - ensuring that the machine name role there is identical to the machine name role you defined in the Application Portal (th_cass_th_dep_cass_) (See Step 5 of Setup authorization access to Drupal Site - Drupal community )
That should do the trick. Let us know if not.
-c