Sometime while accessing WHM, some links are giving below error.
Unknown License File Version (has = 23, needed = 22, length=1554). This means that the system failed to get a new license, or part of the update process failed. If you are the server admin,
To resolve this issue follow the below steps
If above commands work then it's ok but if it is still show above error then follow the below steps
run the below command to stop cpsrvd service
then sync the files from cpanel server using below command this will fix your issue.