Undo your changes? If you cant access your panel, try using the server IP or editing the httpd-vhosts.conf file manually and remove the entries, restart apache, log in as zadmin and quickly remove the changes.
And if you want to use SSL, use this module: http://forums.sentora.org/showthread.php?tid=2001
And if you want to use SSL, use this module: http://forums.sentora.org/showthread.php?tid=2001