Error message

• Deprecated function: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\node\NodeViewBuilder::buildLinks() (line 130 of core/modules/node/src/NodeViewBuilder.php).

  Drupal\node\NodeViewBuilder::buildLinks(Object, 'teaser') (Line: 101)
  Drupal\node\NodeViewBuilder::renderLinks('2846', 'teaser', 'en', , NULL)
  call_user_func_array(Array, Array) (Line: 101)
  Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #lazy_builder callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. See https://www.drupal.org/node/2966725', 'exception', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 788)
  Drupal\Core\Render\Renderer->doCallback('#lazy_builder', Array, Array) (Line: 353)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 111)
  __TwigTemplate_22764af2434d9ffe2b76c7d7dc090e39->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('themes/contrib/bootstrap/templates/node/node.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('node', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 60)
  __TwigTemplate_ff1658818ae99014498176e87a1abd43->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('core/modules/views/templates/views-view-unformatted.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('views_view_unformatted', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 110)
  __TwigTemplate_c3012b79c61aae980b57ed439ed68af0->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('themes/contrib/bootstrap/templates/views/views-view.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('views_view', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array, ) (Line: 242)
  Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 580)
  Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 243)
  Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 132)
  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: 142)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 174)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
  Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
  Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191)
  Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
  Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
  Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 49)
  Asm89\Stack\Cors->handle(Object, 1, 1) (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
  Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
  Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
  

• Deprecated function: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\node\NodeViewBuilder::buildLinks() (line 130 of core/modules/node/src/NodeViewBuilder.php).

  Drupal\node\NodeViewBuilder::buildLinks(Object, 'teaser') (Line: 101)
  Drupal\node\NodeViewBuilder::renderLinks('2836', 'teaser', 'en', , NULL)
  call_user_func_array(Array, Array) (Line: 101)
  Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #lazy_builder callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. See https://www.drupal.org/node/2966725', 'exception', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 788)
  Drupal\Core\Render\Renderer->doCallback('#lazy_builder', Array, Array) (Line: 353)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 111)
  __TwigTemplate_22764af2434d9ffe2b76c7d7dc090e39->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('themes/contrib/bootstrap/templates/node/node.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('node', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 60)
  __TwigTemplate_ff1658818ae99014498176e87a1abd43->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('core/modules/views/templates/views-view-unformatted.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('views_view_unformatted', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array) (Line: 479)
  Drupal\Core\Template\TwigExtension->escapeFilter(Object, Array, 'html', NULL, 1) (Line: 110)
  __TwigTemplate_c3012b79c61aae980b57ed439ed68af0->doDisplay(Array, Array) (Line: 405)
  Twig\Template->displayWithErrorHandling(Array, Array) (Line: 378)
  Twig\Template->display(Array) (Line: 390)
  Twig\Template->render(Array) (Line: 55)
  twig_render_template('themes/contrib/bootstrap/templates/views/views-view.html.twig', Array) (Line: 387)
  Drupal\Core\Theme\ThemeManager->render('views_view', Array) (Line: 433)
  Drupal\Core\Render\Renderer->doRender(Array) (Line: 446)
  Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 204)
  Drupal\Core\Render\Renderer->render(Array, ) (Line: 242)
  Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 580)
  Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 243)
  Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 132)
  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: 142)
  Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 174)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
  Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
  Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191)
  Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
  Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
  Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 49)
  Asm89\Stack\Cors->handle(Object, 1, 1) (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
  Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
  Drupal\Core\DrupalKernel->handle(Object) (Line: 19)