cPanel licenses are defined on the ip address. Because it is defined on the ip address, you must ask the cPanel for its license within the cPanel server. Let's say you have purchased a cPanel license to your server and still receive a license error when you log in to the panel. Simply connect to your server with SSH and execute the following command;
/ Usr / local / cPanel / cpkeyclt
After applying the command, you can log in to your panel and start using your licensed product.