WHM/cPanel fix license issuehttp://verify.cpanel.net/
Follow this link to check IP license status.
Once you checked the license is invalid you need inform West, Laven, Joe Fai or Yau the IP address for them to proceed to renew / purchase the WHM/cPanel license.
After they done the renew / purchase license, you need to login server or VPS to the root and type this command “ /usr/local/cpanel/cpkeycit ”
After you run the command, you need to double check the WHM/cPanel interfaces can be login or not.