CSF blank page webmin mobile on centos 7 (fixed!)

ref: https://www.vultr.com/docs/setup-csf-on-centos-7

If you having problem running csf module on webmin please install dependencies:
* notes: i'm using Epel and rpmforge repos before running this installation. worked for me.

Install the CSF dependencies.

  yum -y install wget perl unzip net-tools perl-libwww-perl perl-LWP-Protocol-https perl-GDGraph