I just purchased and installed xmod pro 2.7. I installed in on dotnetnuke 4.9.5. When I go to the control panel, I get an AJAX error when I click Manage Forms, Manage Templates or Form Builder. This is the error:

Access is denied. Your session may have timed out or you do not have permission to access this service. An unexpected error occurred during the AJAX call: Thread was being aborted.

I am logged in with the superuser account. How can I fix this?

I just noticed that this only happens on the child portal on which I need xmod pro. It works ok on the parent portal.