This theme uses the WooCommerce plugin, which can be obtained here or by searching in Dashboard > Plugins > Add New. You will also need to install the Genesis Connect for WooCommerce plugin, which can be obtained here or by searching in Dashboard > Plugins > Add New.
Once installed WooCommerce will walk you true the basic setup of your webshop. WooCommerce will add in these steps the most importent pages and end-points e.g. the cart, checkout, account etc.
Next step is to create a shop page. Navigate to Pages > Add New. Create a new page with the name shop or any other name. Save the page. Next navigate to WooCommerce >Settings > Products > Display. Under Shop & Product Pages set the shop page to the page you’ve just created.
Stay on the same page and check the Product images settings. Configure as you see below: 
Don’t forget to save the changes.
PLEASE NOTE: While this theme is pre-styled to work with WooCommerce, we offer no support for the plugin itself beyond the installation instructions since it wasn’t developed by us. Should you need further support for WooCommerce please visit here.