Woocommerce > Settings > Accounts > Customer registration > Enable customer registration on the “My account” page.
Read more about settings – https://docs.woocommerce.com/document/configuring-woocommerce-settings/#accounts-and-privacy-settings
This is how the theme and Core should be translated – https://xstore.helpscoutdocs.com/article/30-base-theme-translation , this article will help you to translate WooCommerce plugin – https://woocommerce.com/document/woocommerce-localization/
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.