In some cases, your cPanel license may get out of sync with cPanel's licensing server. You may receive the following error:
"This copy of cPanel / WHM is a trial version and will expire at the end of the trial term. You will need to upgrade to a paid copy of cPanel / WHM to continue using the software after that term."
To resolve this issue, simply log into SSH and enter the following: /usr/local/cpanel/cpkeyclt
The result should be:
# /usr/local/cpanel/cpkeyclt
Updating cPanel license...Done. Update succeeded.
Building global cache for cpanel...Done
If you have continued problems, please ensure you have a valid license with us and your invoices are paid up to date. You can verify your server IP has an active license here: https://verify.cpanel.net/
If you require a cPanel license for your server, or for more help, please contact our sales team.