I’m going to state the obvious here: You’re on the “Installed Scripts” tab. That just shows you what is already installed on that particular server. If you are on that tab on the other server and it’s showing “no scripts are installed on this server” then you have nothing installed.
The next tab over is “Available Scripts”. That is where you go to see what can be installed.
Understood. I do have phpmyadmin installed (and working) on the other server - it just doesn’t show under the “Installed Scripts” tab. Both installs of phpmyadmin were installed in the same way some years ago. I guess I’ll install it again through the “Available Scripts” tab and see what happens/