How to install old gantry template on Joomla 3.9.11?

Question

CMS

There is a site on joomla 1.5.25. I updated it locally to 3.9.11, then it turned out that I had a template using Gantry from rockettheme. Installed Gantry 5 (library, plugin, etc. on Joomla 3.6 (in an interim update)). How to install old rockettheme template made on Gantry (version unknown) on Joomla 3.9.11?
I installed it in the standard way, but still writes that I need Gantry 5 framework, I installed the standard Gantry template, now it displays only the main page of this template.