Issue fixed with these SSH commands
yum update
yum install nginx make automake gcc gcc-c++ fcgi-perl wget
yum install nginx fcg-perl wget
chkconfig --add nginx
chkconfig nginx on

One more problem, I am unable to redirect non-www to www, when I post this "server {
    listen      80;
    server_name  example.com;
    return      301 http://www.example.com$request_uri;
}"

where to paste this?

I have added it to common file but when i try to restar nginx, its giving error and redirect is also not working, then i have added it to webuzoVH.conf then its giving redirect loop error