Service httpd stopped and won't start, user not deleted

Hi,

I just (suddenly) received a mail from DA that service httpd is stopped. When I tried to (re)start it, it gave the following errors:

# service httpd restart
Stopping httpd: [FAILED]
Starting httpd: Warning: DocumentRoot [/home/USER/domains/DOMAIN.COM/public_html] does not exist
httpd: bad user name USER

I know it's not the best thing to do, but when I manually add the folders /home/USER/domains/DOMAIN.COM/public_html, I keep getting the error: httpd: bad user name USER.

So I guess a reseller client just deleted the USER account, but DA didn't completely remove the account and I have to remove it everywhere manually. But now the question: Where do I have to remove it?

I don't see anything related to USER or DOMAIN.com in:
/etc/named.conf
/etc/httpd/conf/httpd.conf

In which file can I see and remove virtual hosts or other things related to USER? It's a CentOS/DA server.

Thanks in advance!

Hello,

Check it here: /etc/httpd/conf/extra/directadmin-vhosts.conf