Foreman/Katello Proxy Disabled

Hey guys,

Have come across an issue when updating katello from 3.6 - 3.8, the smart-proxy (on the Katello server itself) is showing this error:

Disabling all modules in the group [‘puppet_proxy_puppet_api’, ‘puppet’] due to a failure in one of them: File at ‘/etc/puppetlabs/puppet/ssl/certs/’ defined in ‘puppet_ssl_cert’ parameter doesn’t exist or is unreadable.

Is this required to be enabled for Katello to provide content and package management if there are no secondary/external proxies?

Foreman version 1.19