Ошибка что делать

Warning: require_once(/www/u6152/www/htdocs/wp-content/themes/appointment/functions /comments.php) [function.require-once]: failed to open stream: No such file or directory in /www/u6152/www/htdocs/wp-content/themes/appointment/functions.php on line 17

Fatal error: require_once() [function.require]: Failed opening required ‘/www/u6152/www/htdocs/wp-content/themes/appointment/functions /comments.php’ (include_path=’.:/usr/local/share/pear’) in /www/u6152/www/htdocs/wp-content/themes/appointment/functions.php on line 17