Warning: require_once(DB.php) [function.require-once]: failed to open stream: No such file or directory in /home/asa-kizu/lib/database.inc on line 20

Fatal error: require_once() [function.require]: Failed opening required 'DB.php' (include_path='.:/home/asa-kizu/lib:/usr/local/lib/php') in /home/asa-kizu/lib/database.inc on line 20