Error message

• Notice: Undefined index: weight in Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple() (line 270 of core/lib/Drupal/Core/Entity/Entity/EntityViewDisplay.php).

  Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple(Array) (Line: 320)
  Drupal\Core\Entity\EntityViewBuilder->buildComponents(Array, Array, Array, 'full') (Line: 24)
  Drupal\node\NodeViewBuilder->buildComponents(Array, Array, Array, 'full') (Line: 263)
  Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 220)
  Drupal\Core\Entity\EntityViewBuilder->build(Array)
  call_user_func(Array, Array) (Line: 378)
  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: 576)
  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: 108)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 158)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
  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: 182)
  Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 121)
  Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 75)
  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: 657)
  Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
  

• Notice: Undefined index: weight in Drupal\Core\Entity\EntityViewBuilder->buildMultiple() (line 280 of core/lib/Drupal/Core/Entity/EntityViewBuilder.php).

  Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 220)
  Drupal\Core\Entity\EntityViewBuilder->build(Array)
  call_user_func(Array, Array) (Line: 378)
  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: 576)
  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: 108)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 158)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 68)
  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: 182)
  Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 121)
  Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 75)
  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: 657)
  Drupal\Core\DrupalKernel->handle(Object) (Line: 19)