TwigExtension not found

Recently i update my Drupal 8 with Drush:

$ drush pm-update -y
Update information last refreshed: Lun, 11/28/2016 - 11:42
Name Installed Version Proposed version Message
Calendar (calendar) 8.x-1.x-dev 8.x-1.x-dev Actualización disponible

Code updates will be made to the following projects: Calendar [calendar-8.x-1.x-dev]

Project calendar was updated successfully. Installed version is now 8.x-1.x-dev.

But when i enter in the Admin it says:

The website encountered an unexpected error. Please try again later.
Error: Class 'Drupal\calendar\Template\TwigExtension' not found in Drupal\Component\DependencyInjection\Container->createService() (line 268 of core/lib/Drupal/Component/DependencyInjection/Container.php).
Drupal\Component\DependencyInjection\Container->createService(Array, 'calendar.twig.extension') (Line: 177)
Drupal\Component\DependencyInjection\Container->get('calendar.twig.extension', 1) (Line: 494)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 329)
Drupal\Component\DependencyInjection\Container->createService(Array, 'twig') (Line: 177)
Drupal\Component\DependencyInjection\Container->get('twig') (Line: 158)
Drupal::service('twig') (Line: 56)
twig_render_template('core/themes/seven/templates/admin-block-content.html.twig', Array) (Line: 384)
Drupal\Core\Theme\ThemeManager->render('admin_block_content', Array) (Line: 435)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 195)
Drupal\Core\Render\Renderer->render(Array, ) (Line: 226)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 574)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 227)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 117)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 149)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 64)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 99)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 78)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 50)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 652)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)