Error getting repository data for epel, repository not found

Hi
I tried to install cwp on a dedicated centos 7 server
faced with this error:

#############################################
Please wait... Installing PHP ...
#############################################

Loaded plugins: fastestmirror


Error getting repository data for epel, repository not found

Compiler requires 512 MB RAM + SWAP
Installation FAILED at php
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   899  100   899    0     0    488      0  0:00:01  0:00:01 --:--:--   488
sh: line 46: /usr/local/bin/php: No such file or directory
grep: /etc/init.d/httpd: No such file or directory
Received
Please contact CWP support about this issue and include the last few lines from the error:
http://centos-webpanel.com/contact

Run the following commands as root

yum install epel-release


then check:

yum repolist

then update;
yum -y update

reboot the server and you should be able to proceed

But reinstall OS with clean CentOS 7 before.