Why don’t you use the macOS Migration Assistant to install (all) the applications, documents, settings from your old Mac? This would be the easiest way to transfer your installed Panorama 6 to your new Mac.
The harder way: Some weeks ago I had to do a clean installation of High Sierra, and the migration happened to fail. Among the other apps, I had to install Pan 6 manually. The download worked via Pan X. Then I had to work around the “Error 7” issue; the older TechNote on the ProVUE website showed me the way: I had to (temporarily) create and use a root account for the registration.