Scheduled Sectigo Maintenance - Unable to Obtain Hostname Certificate - X::TemporarilyUnavailable

Symptoms

When checkallsslcerts runs, the hostname certificate cannot be obtained and the following error is returned.

Requesting certificate from cPStore …
The cPanel Store returned an error (X::TemporarilyUnavailable) in response to the request “POST ssl/certificate/whm-license/90-day”: We were unable to process your request. Please try again later.

Description 

When Sectigo performs maintenance, SSL certificates cannot be ordered through Sectigo. You may check Sectigo's maintenance status at the following URL.

https://sectigo.status.io/

Workaround

Once Sectigo's maintenance has ended, run the following command to order a new hostname certificate.

/usr/local/cpanel/bin/checkallsslcerts