Always the same view content on slim framework with twig after save changes - twig

Question

I'm using Slim and Twig and I'm trying to change a view content, but it doesn't change after I saved the changes.
This is the controller:
<?php
use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;
require '../../vendor/autoload.php';
require './classes/connection.php';
$app = new \Slim\App;
$container = $app->getContainer();
$container['view'] = function ($container) {
$view = new \Slim\Views\Twig('../../views', [
'cache' => '../../views_cache'
]);
// Instantiate and add Slim specific extension
$router = $container->get('router');
$uri = \Slim\Http\Uri::createFromEnvironment(new \Slim\Http\Environment($_SERVER));
$view->addExtension(new \Slim\Views\TwigExtension($router, $uri));
return $view;
};
$app->get('/hello/{name}', function (Request $request, Response $response, array $args) {
/*$name = $args['name'];
$response->getBody()->write("Hello, $name");
echo getcwd();
return $response;*/
return $this->view->render($response, 'login.html', [
'name' => $args['name']
]);
});
$app->post('/login', function (Request $request, Response $response, array $args) {
$post_data = $request->getParsedBody();
if (isset($post_data['user']) && isset($post_data['pass'])) {
$mongo = new Connection();
$conn = $mongo->getConnection();
$collection = $conn->prueba->users;
$result = $collection->find(['user' => $post_data['user']])->toArray();
$dbUser = $result[0]['username'];
$dbPass = $result[0]['password'];
if (password_verify($post_data['pass'], $dbPass)) {
echo '¡La contraseña es válida!';
} else {
echo 'La contraseña no es válida.';
}
} else {
return $response->withJson(array('login_status' => 'ko'));
}
});
$app->run();
What I missed to see the view changes? I think it's something about compile view but I'm not sure. It's the first time I use this framework.