The free version is called the Standard license—it's free "forever" and includes basic features. However, the panel requires this free license to be linked to a server/IP address, so upon first login, it asks for an email address and a license. The official FASTPANEL website states that the panel is free for end users and hosting providers, and the Standard license is "Free forever."
1) Log in to the panel at https://IP:8888;
2) Request a license;
3) Enter your email address;
4) Secure email;
5) In your FASTPANEL account, select/apply for a Standard/Free license and link it to your server IP address.
