Kash G. when you duplicate the Relume Figma kit, you'll want to open up that file and then open up the figma plugin within that file. Then you should be seeing your list of projects.
If you are seeing the message above within the plugin, it means that you do not have the latest style guide open while this plugin is open.
Unfortunately its no longer possible to just open a blank figma file and then open our Figma plugin and import.