When you install the WooCommerce plugin, your website will automatically create a Shop page. Therefore, when importing Ruza data, it will have two Shop pages. You need to delete a page. Please follow this video:
Step 1: Delete all cart and checkout pages.
Step 2: Create a new cart and checkout page with the shortcode.
Step 3: Select page cart and checkout
Watch detailed video instructions here:
Please follow this video:
You need to match the types of attributes, eg: Color => Type = Color