G5 Shop, Woocommerce are included in the theme so this are required plugins, you need to install/active this plugins if you want to have Woocommerce features.
You need to activate the G5 Core plugin for G5 Shop to work.
G5 Shop is the affiliate shop page plugin for your WordPress website that everyone can easily setup and use. It’s super easy to create a shop page and start adding products immediately.
With G5 Shop plugin, you can create the shop page on your website with a grid of products. They display with many shop layouts such as: Sidebar, No sidebar, fullwidth etc...
You’ll learn to set up in the document of plugin with G5 Shop