Enhance is not showing for me in Paymenter.

Nyrux Paymenter does not work when hosted via enhance.
Why not?
Just download the tar and install like any other webapp, change the document root to /public_html/public and follow the rest of their how-to in terminal. Or am I wrong?
I was able to install mine in Enhance without any problem.
The only issue now that I'm facing is to show Enhance in the servers tab and when I go to: /admin/settings?tab=-general-tab
I get this:

That's the only issue so far.