Hello @PR,
We suggest that you configure your registration settings in WooCommerce -> Settings as shown in the screenshot provided (https://gyazo.com/d9d2a2e4014b71edbe0e45c00677b5bc).
After doing so, please check your site to see if the Create an Account button/section appears on the checkout page.
We hope this helps.
Best Regards, 8Theme’s Team
