I installed Virtualmin with a pro license, went to install one of the third-party scripts I only show scripts for GPL that are active all the other scripts that are marked “pro” and are unavailable to install. is there a way to activate the “pro” scripts so I can install them?
Check your apt sources to make sure it is pointing to the pro repos (don’t post your license details, which appear in the apt configuration).
Usually we see this when GPL has been manually installed over the Pro version; it shouldn’t be able to happen accidentally, assuming you have the right repos configured.