WooCommerce as a plugin is of great importance to this theme as it allows you to add NFTs and NFT collections.
To install the plugin you need to go to this link here: https://wordpress.org/plugins/woocommerce/installation/
There you have a detailed description of how to install the plugin & brief description of what the plugin stands for & how it functions.
Note: For the plugin to work properly you need to check this option:
You need to enable the options anyone can register.