Installing Plugins
After you activated the theme, there will be a notification that says you have to install the plugins to use the theme, install the plugins and activate them.
Woocommerce plugin
If your theme is compatible with the Woocommerce plugin (Rosegold and Blossom), if you do not plan to open a shop right now, do not install this plugin. Ignore the message. Your theme can work just fine without Woocommerce and Genesis Connect for WooCommerce.
You can install this later when you plan to open a shop.