Starter Templates are built with the free version of page builders and some other plugins. While importing a template, if these required plugins are not available on your website, they will be automatically installed.
In case, the automatic plugin installation process fails, you will see a popup showing an error – 「Plugin Installation Failed「
If you are on a single site, refer this document here.
In case you are on multisite, here is what you can do –
If your user profile has access to install plugins, Starter Templates plugins will automatically do work for you.
But in case your use profile does not access, you would need to contact your website administrator and ask them to install required plugin for your starter templates.