Description:
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I am getting these errors:
Fatal error: Call to a member function bind_param() on a non-object in /var/www/index.php on line 92
Fatal error: Call to a member function execute() on a non-object in /var/www/index.php on line 122

Reproduce code:
---------------
with this code:
default :
		// list operation
		$stmt = $db->prepare('SELECT id, email, quota FROM users');
		$stmt->execute();
		$stmt->bind_result($id, $email, $quota);

		// not good for large datasets
		$results = array();
		while ($stmt->fetch()) {
			$results[] = array('id' => $id, 'email' => $email, 'quota' => $quota);
		}

		$stmt->close();
		
		include WORKING_DIR.'/list.inc.php';
}

$db->close();

Expected result:
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I would like to get the page to work like this: http://white-box.us/manage/index.php