Не могу получить маркер доступа api facebook

require_once __DIR__ . '/vendor/autoload.php';
 
use Facebook\Facebook;
use Facebook\Exceptions\FacebookResponseException;
use Facebook\Exceptions\FacebookSDKException;
 
// Init PHP Sessions
session_start();
 
$fb = new Facebook([
  'app_id' => '{your-app-id}',
  'app_secret' => '{your-app-secret}',
]);
 
$helper = $fb->getRedirectLoginHelper();
 
if (!isset($_SESSION['facebook_access_token'])) {
  $_SESSION['facebook_access_token'] = null;
}
 
if (!$_SESSION['facebook_access_token']) {
  $helper = $fb->getRedirectLoginHelper();
  try {
    $_SESSION['facebook_access_token'] = (string) $helper->getAccessToken();
  } catch(FacebookResponseException $e) {
    // When Graph returns an error
    echo 'Graph returned an error: ' . $e->getMessage();
    exit;
  } catch(FacebookSDKException $e) {
    // When validation fails or other local issues
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
  }
}
 
if ($_SESSION['facebook_access_token']) {
  echo "You are logged in!";
} else {
  $permissions = ['ads_management'];
  $loginUrl = $helper->getLoginUrl('http://localhost:8888/marketing-api/', $permissions);
  echo '<a href="' . $loginUrl . '">Log in with Facebook</a>';
}

$fb = new Facebook\Facebook([
  'app_id' => '615105055943900',
  'app_secret' => 'secret',
  'default_graph_version' => 'v5.0',
  ]);
 
try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->get('/me?fields=id,name', 'token');
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}
 
$user = $response->getGraphUser();
 
echo 'Name: ' . $user['name'];