I can not start Mysql

and

check the error log

and

1. You need to add your hostname :
# hostname sub.domain.com

2. You need to add your public IP to hosts:
# nano /etc/hosts
Add this line
YOUR_SERVER_PUBLIC_IP your_hostname
(ex:  123.233.121.23 ns1.mydomainname.com)

3. You need to add ServerName in your Cwp conf file
# nano /usr/local/cwpsrv/conf/httpd.conf
Add this line:   ServerName your_hostname

If your hostname is reverted to default every time you reboot your server (in your image I see it's ...linode.com), then have a look on this post : http://forum.centos-webpanel.com/centos-6-problems/change-hostname-and-reset-when-reboot-vps/msg5377/#msg5377

One more thing, you need to autostart cwpsrv evertime you reboot the system:
# chkconfig cwpserv on