In this issue, you could check this out https://docs.woocommerce.com/document/woocommerce-square/
However, there has no relation to our theme. Because we didn’t provide any extra WooCommerce plugin with our theme. We have just provided support and recommended the WooCommerce like another 3rd party plugin and styled the default design to match the design with our theme, nothing else.
You could install and use the WooCommerce plugin from Plugins -> Add New
if you have any doubt.
Moreover, please learn more about our support policy (item support includes & not includes), here https://www.themelooks.com/support/support-policy/ before post a topic or ask a question.
Best Regards,
ThemeLooks Support Team