مشكل در نصب بر روي ويندوز

اين خطا يعني چي :
Warning: require_once(../includes/database.php) [function.require-once]: failed to open stream: No such file or directory in e:\webspace\resadmin\shari018\hamed.sharifcom.com\ www\mamboo\installation\install2.php on line 21

Fatal error: require_once() [function.require]: Failed opening required '../includes/database.php' (include_path='.;C:\php5\pear') in e:\webspace\resadmin\shari018\hamed.sharifcom.com\ www\mamboo\installation\install2.php on line 21

includes/database.php'

چک کنید این فایل وجود داره یا نه