Forums / Cotonti / Extensions / Ajaxchat for error

Hi guys,

Ajaxchat system integrated to seditio

Neocrome.ru forum topic:
http://www.neocrome.ru/forums.php?m=posts&q=2800
Ajaxchat system website:
https://blueimp.net/ajax/

Download ajaxchat integrated to seditio:
http://slil.ru/27514551

Mywebsite install error:

Notice: Undefined index: system_dir in /home/xxx/public_html/system/functions.php on line 4564

Warning: require_once() [function.require-once]: Unable to access /xtemplate.class.php in /home/xxx/public_html/system/functions.php on line 4564

Warning: require_once(/xtemplate.class.php) [function.require-once]: failed to open stream: No such file or directory in /home/xxx/public_html/system/functions.php on line 4564

Fatal error: require_once() [function.require]: Failed opening required '/xtemplate.class.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/xxx/public_html/system/functions.php on line 4564

chat/lib/custom.php:

require('../system/functions.php');
require('../system/templates.php');
require('../datas/config.php');

Cotonti for system/templates.php Not Found