When restarting DNS on the kloxo control panel, you will receive the error
none:0: open: /etc/named.conf: file not found
This is because the DNS config file does not exists on the server. If you check the DNS service status, it will show online/functional. But, none of the domain will resolve to server IP address. You will have to execute a script on the server via SSH.
# /script/fixdns
This will fix the DNS issues and restore the DNS config file. You can install kloxo control panel on VPS hosting & Dedicated Servers.