I could not access backend of your site with the credentials on thread and could not duplicate that bug at my end but you can try to add my code below to replace whole templates/ja_zite/index.php file
<?php
/*
* ------------------------------------------------------------------------
* JA ZiteTemplate
* ------------------------------------------------------------------------
* Copyright (C) 2004-2011 J.O.O.M Solutions Co., Ltd. All Rights Reserved.
* @license - Copyrighted Commercial Software
* Author: J.O.O.M Solutions Co., Ltd
* Websites: http://www.joomlart.com - http://www.joomlancers.com
* This file may not be redistributed in whole or significant part.
* ------------------------------------------------------------------------
*/
// no direct access
defined ( '_JEXEC' ) or die ( 'Restricted access' );
if (class_exists('T3Template')) {
$tmpl = T3Template::getInstance();
$tmpl->setTemplate($this);
$tmpl->render();
return;
} else {
//Need to install or enable JAT3 Plugin
echo JText::_('MISSING_JAT3_FRAMEWORK_PLUGIN');
}
?>
and don’t forget to backup templates/ja_zite/index.php file before doing changes
Hope it helps