Many of you might have come across the cPanel License Expired error on
accessing cPanel or WHM.
When you encounter such a problem, you can verify if it has actually expired from http://layer1.cPanel.net/verify by giving the main IP of the server there. And if it shows the license as still active, then ssh to the server as root and run the script.
and restart cPanel.
If it doesn’t clear off in the first attempt, remove the file called “lisc” and run cpkeyclt again.
# cd /usr/local/cpanel/
# rm -rf lisc
Restart cPanel and the error should be gone!!!