php curl apple url always get "Authentication credentials are missing or invalid." SOS

This is my code

require __DIR__ . '/vendor/autoload.php';
use Firebase\JWT\JWT;
date_default_timezone_set("Asia/Taipei");

header('Content-Type: application/json'); // Specify the type of data

$privateKey =<<<eod
-----BEGIN PRIVATE KEY-----
my_private_here
-----END PRIVATE KEY-----
EOD;
$JWT_Header = array(
    "kid"=> "my_kid",
);
$JWT_Payload = array(
    "iss"=> "my_iss_id",
    "exp"=>(string)time(),
    "aud"=> "appstoreconnect-v1"
);

$jwt = JWT::encode($JWT_Header, $privateKey, 'ES256','YPVNQH3M54');
$authorization = "Authorization: Bearer ".$jwt;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.appstoreconnect.apple.com/v1/users");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

//Set your auth headers
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
   'Content-Type: application/json',
   'Authorization: Bearer ' . $authorization
   ));

$response = curl_exec($ch);

  echo "";
$err = curl_error($ch);

curl_close($ch);


if ($err) {

  echo "cURL Error #:" . $err."
";

   print_r(json_decode($response));

} else {

  print_r(json_decode($response));

}


function base64url_encode($data) {

    return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
  }

I execute website display this message

Why am I fellow step by step still get above message ?