problem -> centos7 Apache HTTP Server Test on all my domains

i've a big problem

i try to install awstats
when i test http://localhost/awstats/awstats.pl?config=my_domain, i see the script on screen.
i've try to install mod_perl

now on my all domain  i see the centos7 Apache HTTP Server Test (/usr/share/httpd/noindex/index.html)


i've test to rebuilt vhost, re-built apache but nothing change
it looks like apache no longer handles vhosts

Check if by mistake you installed another version of apache. You remove httpd

Check if by mistake you installed another version of apache. You remove httpd

it'so easy 
thank's a lot when i have install mod_perl an another apache version has been installed

How can i use a perl page ?

OK i've find

i have an other problem with apache

now when i want to restart, start or stop httpd i have this message

Failed to start httpd.service: Unit not found.

i've search on /usr/lib/systemd/system, no file httpd.service

yum reinstall cwp-httpd