Warning: require_once(./libraries/sanitizing.lib.php): failed to open stream: No such file or directory in D:\AppServ\www\wait2\Connections\error.php on line 12

Fatal error: require_once(): Failed opening required './libraries/sanitizing.lib.php' (include_path='.;C:\php\pear') in D:\AppServ\www\wait2\Connections\error.php on line 12