You receive a warning that a domain may be losing its SSL covering in X number of days and that you must take action to secure the site.
When you install an SSL provided by a 3rd party issuer, such as Comodo CA, you may receive an alert when the SSL certificate is nearing expiration:
"domain.tld: The SSL certificate expires on Aug 1, 2020 at 12:00:00 AM UTC.
At the time of this notice, the certificate will expire in 28 days, 4 hours, 31 minutes, and 29 seconds.
The SSL certificate for domain.tld has not been renewed. You must take action to secure this site.
To upgrade to an EV or OV certificate, navigate to the SSL/TLS Wizard interface.
The following domain names will lose SSL coverage when the certificate expires:
If you would like to renew the SSL with one provided by cPanel, you can do this through the cPanel or WHM interface.
Via cPanel, navigate to the SSL/TLS Wizard interface to run the AutoSSL service for the domain, or from the WHM, you can also run the AutoSSL through the Home » SSL/TLS » Manage AutoSSL.