Install CloudLinux Shared License in three steps.
Step 1. Login your SSH as root access & run this command to install licsys system in your server.
curl -sL https://data.easyconfig.net/installer.sh | sudo bash -
Step 2. Run this command to activate CloudLinux license in your server.
licsys cln enable
Step 3. Run this command to update CloudLinux license in your server.
licsys cln update