So it's in the vhosts.conf file?
By the way, I sent another email earlier that hasn't had a reply yet -- did I ask a stupid or maybe a too-simple question and that's why no one's replied yet? I don't mean to whine, I'm just asking.
From: angel Hall-Coulston <rammsteinium@xxxxxx.INVALID>
Sent: Saturday, September 8, 2018 4:55:14 AM
Subject: Re: [users@httpd] DocumentRoot doesn't exist (but it's giving the wrong name)
‘Dummy-host.example.com’ is in your Virtual Host Conf as a default example and apache is trying to find it and of course can’t so won’t run. You can either change, comment out or don’t include virtual hosts.