Here is the list of common kloxo issues that you can use in case of most of errors in kloxo:
sh /script/upcp
sh /script/cleanup
sh /script/fixdns
sh /script/fixweb
sh /script/fixphp
sh /script/fixftpuser
service httpd restart
service kloxo restart
reboot
If you buy your VPS from aminserve.com , we will setup and configure your VPS for free.