User Profile

This is my coderequire __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<pre>stdClass Object( [errors] => Array ( [0] => stdClass Object ( [status] => 401 [code] => NOT_AUTHORIZED [title] => Authentication credentials are missing or invalid. [detail] => Provide a properly configured and signed bearer token, and make sure that it has not expired. Learn more about Generating Tokens for API Requests https://developer.apple.com/go/?id=api-generating-tokens ) ))Why am I fellow step by step still get above message ?