Где косяк?
<?php
// HTTP
define('HTTP_SERVER', '[url=http://xn--16-mmc.xn--p1ai/admin/');]http://xn--16-mmc.xn--p1ai/admin/');[/url]
define('HTTP_CATALOG', '[url=http://xn--16-mmc.xn--p1ai/admin/');]http://xn--16-mmc.xn--p1ai/admin/');[/url]
// HTTPS
define('HTTPS_SERVER', '[url=http://xn--16-mmc.xn--p1ai/admin/');]http://xn--16-mmc.xn--p1ai/admin/');[/url]
define('HTTPS_CATALOG', '[url=http://xn--16-mmc.xn--p1ai/admin/');]http://xn--16-mmc.xn--p1ai/admin/');[/url]
// DIR
define('DIR_APPLICATION', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/admin/');
define('DIR_SYSTEM', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/system/');
define('DIR_DATABASE', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/system/database/');
define('DIR_LANGUAGE', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/catalog/language/');
define('DIR_TEMPLATE', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/catalog/view/theme/');
define('DIR_CONFIG', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/system/config/');
define('DIR_IMAGE', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/image/');
define('DIR_CACHE', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/system/cache/');
define('DIR_DOWNLOAD', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/download/');
define('DIR_LOGS', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/system/logs/');
define('DIR_CATALOG', '/home/httpd/vhosts/xn--16-mmc.xn--p1ai/httpdocs/catalog/');
// DB
define('DB_DRIVER', 'mysql');
define('DB_HOSTNAME', 'a142598.mysql.mchost.ru');
define('DB_USERNAME', 'a142598_1');
define('DB_PASSWORD', 'Jpppppppppppppppppppppppppppppppr');
define('DB_DATABASE', 'ppppppppppppppp');
define('DB_PREFIX', 'wlz');
?>