We are sorry to hear that. But unless otherwise specified none of our scripts is a plug-in to WordPress. You can't install them as a WordPress plug-in.
The system works by itself, as a standalone system. You need a separate database for it. You can install it to any domain or a subdomain, use the same email account that you use anywhere else. And you can install it alongside any WordPress installation.
Last Updated: 02 Jun 2020