Fix The "n" entity type does not exist issue for Page Manager on the patch for Variants take entity label not the variant title

After upgrading blog items stop rendering and throwing an error:

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "n" entity type does not exist. in Drupal\Core\Entity\EntityTypeManager->getDefinition() (line 150 of core/lib/Drupal/Core/Entity/EntityTypeManager.php).
Drupal\Core\Entity\EntityTypeManager->getHandler('n', 'storage') (Line: 208)
Drupal\Core\Entity\EntityTypeManager->getStorage('n') (Line: 80)
Drupal\Core\Entity\EntityManager->getStorage('n') (Line: 108)
Drupal\page_manager\PageManagerHelper->fixContexts(Array) (Line: 82)
Drupal\page_manager\PageManagerHelper->getTitle('[node:title]', Array) (Line: 65)
Drupal\page_manager\PageManagerHelper->getVariantTitle(Object)
call_user_func_array(Array, Array) (Line: 58)
Drupal\Core\Controller\TitleResolver->getTitle(Object, Object) (Line: 752)
token_tokens('current-page', Array, Array, Array, Object)
call_user_func_array('token_tokens', Array) (Line: 403)
Drupal\Core\Extension\ModuleHandler->invokeAll('tokens', Array) (Line: 304)
Drupal\Core\Utility\Token->generate('current-page', Array, Array, Array, Object) (Line: 196)
Drupal\Core\Utility\Token->replace('[current-page:title] | [site:name]', Array, Array, Object) (Line: 66)
Drupal\metatag\MetatagToken->replace('[current-page:title] | [site:name]', Array, Array) (Line: 553)
Drupal\metatag\MetatagManager->generateRawElements(Array, Object) (Line: 475)
Drupal\metatag\MetatagManager->generateElements(Array, Object) (Line: 499)
metatag_get_tags_from_route() (Line: 126)
metatag_page_attachments(Array) (Line: 297)
Drupal\Core\Render\MainContent\HtmlRenderer->invokePageAttachmentHooks(Array) (Line: 273)
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)
call_user_func(Array, Object, 'kernel.view', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 156)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 67)
Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->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: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 49)
Asm89\Stack\Cors->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)