Issues logging in, initializing function. about cakephp-jwt-auth HOT 2 CLOSED

class UnauthorizedJWTException extends Exception
{
    public function __construct($message = NULL, $code = 401)
    {
        if (empty($message)) {
            $message = 'access denied';
        }
        parent::__construct($message, $code);
    }
}

        'Error'              => ['errorLevel'        => E_ALL,
                                 'exceptionRenderer' => 'App\Error\AppExceptionRenderer',
                                 'skipLog'           => [],
                                 'log'               => TRUE,
                                 'trace'             => TRUE,],

<?php

namespace App\Error;

use App\Controller\AppController;
use Cake\Error\ExceptionRenderer;
use Cake\Routing\Router;
use UnauthorizedJWTException;

class AppExceptionRenderer extends ExceptionRenderer
{
    public function __construct($exception)
    {
        parent::__construct($exception);
    }

    public function UnauthorizedJWT(UnauthorizedJWTException $error)
    {
        $controller = $this->_getController();
        $header = $controller->request->getHeaderLine('accept');
        if (strpos(strtolower($header), 'application/json') === FALSE) {
            $controller->response = $controller->response->withStatus(302);
            $controller->response = $controller->response->withHeader('location', Router::url(['controller' => 'Users',
                                                                                               'action'     => 'login']));
            return $controller->response;
        } else {
            $code = $this->_code($error);
            $message = $this->_message($error, $code);
            $viewVars = ['message'    => $message,
                         'code'       => $code,
                         '_serialize' => ['message',
                                          'code']];
            $this->controller->set($viewVars);
            $response = $this->_outputMessage("error401");
            $response = $response->withStatus($code);
            return $response;
        }
    }
}

'ADmad/JwtAuth.Jwt' => [
                                              'userModel'                => 'UserManager.Users',
                                              'fields'                   => ['username' => 'id'],
                                              'parameter'                => 'token',
                                              'queryDatasource'          => TRUE,
                                              'unauthenticatedException' => 'UnauthorizedJWTException',
                                              'finder'                   => 'auth']