Ошибка 502 при авторизации loginza

[Sat Jul 30 01:53:28 2011] [error] [client 93.78.20.109] PHP Fatal error:  Class 'cms_model_' not found in /usr/home/enda08/data/www/components/comments/frontend.php on line 266

[Sat Jul 30 01:40:35 2011] [error] [client 188.233.3.251] PHP Warning:  Smarty error: math: parameter y is empty in /usr/home/enda08/data/www/includes/smarty/libs/Smarty.class.php on line 1092

 VALUES
(1, 'article', 'content', 'Статьи');