Warning: require_once(./mobile_public/inc/main_header.php) [function.require-once]: failed to open stream: No such file or directory in /free/home/chappy/html/index.html on line 2

Fatal error: require_once() [function.require]: Failed opening required './mobile_public/inc/main_header.php' (include_path='.:/usr/local/php/lib/php') in /free/home/chappy/html/index.html on line 2