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You need to enable registration in WP and WC settings. Navigate to Settings > General > Membership and mark Anyone can register, then go to 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
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.