Ok, so I am thinking this is a problem with the upgrade I did couple days ago.

I upgraded my PHP-Nuke from 7.5, to 7.6 (free versions)
Then I upgraded my forums from 2.0.8, 2.0.9, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.14, then 2.0.15

Now, when I upload a new module in the modules directory, they will not show up on the site. The administration page will not display them.

If I am in admin, I can type the link in directly to access the modules; but only as an admin can I do this. Since I can't get to it in the control panel, I can't activate it for the regular users.

Any ideas on what I did wrong, or forgot to do?