The module is not registered

If you do not have a license key log on to your account www.labulle.net to generate it for your domain name. If you have completed the purchase of the module on addons.prestashop.com, send an email to info@labulle.net attaching your PrestaShop Addons invoice stating your domain name.

If your key is entered but does not activate the module (domain name highlighted in red), make sure the domain name displayed is the same as that for which you have asked for a key. We also need a new key for a different sub-domain than www.

Store in test or pre-production does not require key if it is on local IP (192.168.xx or 127.0.0.1) or a local domain: localhost.
Alternatively you can request a new key to the support.