/usr/bin/kcarectl -q --auto-update: The IP was already used for a trial license

Symptoms

You may receive a cron notification with the following where IPAddress is your servers public IP and YYYY-MM-DD is the year, month, and day:

The IP IPAddress was already used for a trial license on YYYY-MM-DD

Description 

When KernelCare is not licensed and is not eligible for a trial license, you will receive this notification when the following cronjob runs:

# cat /etc/cron.d/kcare-cron
14 */4 * * * root /usr/bin/kcarectl -q --auto-update

Workaround

Purchase a KernelCare license or uninstall KernelCare.