None of the certificates in the system ssl storage were acceptable to use for the “cpanel” service.

I am finding this in the log of my DNSonly servers, how to fix this as WHM is very limited. [2017-09-26 23:29:39 +0100] Processing: Checking service default SSL/TLS certificates [2017-09-26 23:29:39 +0100] - Processing command `/usr/local/cpanel/bin/checkallsslcerts --allow-retry --verbose` [2017-09-26 23:29:40 +0100] [17887] The system will check for the certificate for the "cpanel" service. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to replace the self-signed certificate for the "cpanel" service with a signed certificate from the cPanel Store. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to install a certificate for the "cpanel" service from the system ssl storage. [2017-09-26 23:29:40 +0100] [17887] None of the certificates in the system ssl storage were acceptable to use for the "cpanel" service. [2017-09-26 23:29:40 +0100] [17887] The system will check for the certificate for the "dovecot" service. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to replace the self-signed certificate for the "dovecot" service with a signed certificate from the cPanel Store. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to install a certificate for the "dovecot" service from the system ssl storage. [2017-09-26 23:29:40 +0100] [17887] None of the certificates in the system ssl storage were acceptable to use for the "dovecot" service. [2017-09-26 23:29:40 +0100] [17887] The system will check for the certificate for the "exim" service. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to replace the self-signed certificate for the "exim" service with a signed certificate from the cPanel Store. [2017-09-26 23:29:40 +0100] [17887] The system will attempt to install a certificate for the "exim" service from the system ssl storage. [2017-09-26 23:29:40 +0100] [17887] None of the certificates in the system ssl storage were acceptable to use for the "exim" service. [2017-09-26 23:29:40 +0100] 79% complete [2017-09-26 23:29:40 +0100] Processing: Purging invalid or soon-to-expire Domain TLS entries for service domains [2017-09-26 23:29:40 +0100] - Processing command `/usr/local/cpanel/scripts/check_domain_tls_service_domains.pl --prune` [2017-09-26 23:29:40 +0100] [17888] Use of uninitialized value in string eq at /usr/local/cpanel/Cpanel/SSLCerts.pm line 743. [2017-09-26 23:29:40 +0100] [17888] Use of uninitialized value in string eq at /usr/local/cpanel/Cpanel/SSLCerts.pm line 743. [2017-09-26 23:29:40 +0100] [17888] Ignoring missing certificate for ftp. [2017-09-26 23:29:40 +0100] [17888] Ignoring missing certificate for mail_apns.