Symfony error example

IndexController.php

<?php
namespace App\Controller;

use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Psr\Log\LoggerInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
use Doctrine\ORM\EntityManagerInterface;

class IndexController extends Controller {

    /**
     * @Route("/", name="index_name")
     *      * insert into telegram_bot_profile (app_name, handle, is_webhook_active, webhook, token) VALUES ('EcoBotIL','EcoILStageBot', true, 'BASE_WEBHOOK_URL/telegram/update', '609221930:AAGs7nsP5tzZT5GPgvj4kno2ZAvgYSPGaJk');
     */
    public function index() {
        return new Response('Response');
    }
    /**
     * @param UserPhotoDownloaderService $UserPhotoDownloaderService
     */
    public function s(UserPhotoDownloaderService $UserPhotoDownloaderService) {

      //Should throw an error - and log it to env.log
    }
}