Warning: require_once(header.php) [function.require-once]: failed to open stream: No such file or directory in /KARPATBUD_DE/index.php on line 23

Fatal error: require_once() [function.require]: Failed opening required 'header.php' (include_path='.:/:/usr/local/php5/lib/pear') in /KARPATBUD_DE/index.php on line 23