KITE 3 Order Fail

require_once('include/kiteconnect.php');
require_once('include/function.php');

$kite = new KiteConnect("XXX");

	// Assuming you have obtained the `request_token`
	// after the auth flow redirect by redirecting the
	// user to $kite->login_url()
try {
		$user = $kite->generateSession("XXX", "XXX");

		echo "Authentication successful. \n";
		print_r($user);
echo "</br>";
		$kite->setAccessToken($user->access_token);
	} catch(Exception $e) {
		echo "Authentication failed: ".$e->getMessage();
		throw $e;
	}

	echo $user->user_id." has logged in";
echo "</br>";
	// Get the list of positions.
	
	
	
	// Place order.
	$order_id = $kite->placeOrder([
		"tradingsymbol" => "INFY",
		"exchange" => "NSE",
		"quantity" => 1,
		"transaction_type" => "BUY",
		"order_type" => "MARKET",
		"product" => "NRML"
	], "regular")["order_id"];

	echo "Order id is ".$order_id;