Error message

• Deprecated function: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\node\NodeViewBuilder::buildLinks() (line 139 of core/modules/node/src/NodeViewBuilder.php).

  Drupal\node\NodeViewBuilder::buildLinks() (Line: 108)
  Drupal\node\NodeViewBuilder::renderLinks()
  call_user_func_array() (Line: 107)
  Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 914)
  Drupal\Core\Render\Renderer->doCallback() (Line: 423)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 50)
  __TwigTemplate_d5697220e9759f7c6034215015679752->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 59)
  __TwigTemplate_f1dffd3212599d85af341110e1169c6a->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 79)
  __TwigTemplate_356f6845876e8ef137686b9ab9ef7d2c->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 242)
  Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 638)
  Drupal\Core\Render\Renderer::Drupal\Core\Render\{closure}()
  Fiber->resume() (Line: 653)
  Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 235)
  Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 131)
  Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 69)
  Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() (Line: 254)
  Symfony\Component\EventDispatcher\EventDispatcher::Symfony\Component\EventDispatcher\{closure}() (Line: 206)
  Symfony\Component\EventDispatcher\EventDispatcher->callListeners() (Line: 56)
  Symfony\Component\EventDispatcher\EventDispatcher->dispatch() (Line: 188)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 30)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
  Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 203)
  Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 140)
  Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 89)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 71)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 54)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 753)
  Drupal\Core\DrupalKernel->handle() (Line: 34)
  Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run() (Line: 32)
  require() (Line: 22)
  require_once() (Line: 13)
  

• Deprecated function: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\node\NodeViewBuilder::buildLinks() (line 139 of core/modules/node/src/NodeViewBuilder.php).

  Drupal\node\NodeViewBuilder::buildLinks() (Line: 108)
  Drupal\node\NodeViewBuilder::renderLinks()
  call_user_func_array() (Line: 107)
  Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 914)
  Drupal\Core\Render\Renderer->doCallback() (Line: 423)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 50)
  __TwigTemplate_d5697220e9759f7c6034215015679752->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 59)
  __TwigTemplate_f1dffd3212599d85af341110e1169c6a->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 501)
  Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 79)
  __TwigTemplate_356f6845876e8ef137686b9ab9ef7d2c->doDisplay() (Line: 411)
  Twig\Template->yield() (Line: 394)
  Twig\Template->render() (Line: 51)
  Twig\TemplateWrapper->render() (Line: 35)
  Drupal\Core\Template\TwigThemeEngine->renderTemplate() (Line: 428)
  Drupal\Core\Theme\ThemeManager->render() (Line: 504)
  Drupal\Core\Render\Renderer->doRender() (Line: 517)
  Drupal\Core\Render\Renderer->doRender() (Line: 230)
  Drupal\Core\Render\Renderer->render() (Line: 242)
  Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 638)
  Drupal\Core\Render\Renderer::Drupal\Core\Render\{closure}()
  Fiber->resume() (Line: 653)
  Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 235)
  Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 131)
  Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 69)
  Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() (Line: 254)
  Symfony\Component\EventDispatcher\EventDispatcher::Symfony\Component\EventDispatcher\{closure}() (Line: 206)
  Symfony\Component\EventDispatcher\EventDispatcher->callListeners() (Line: 56)
  Symfony\Component\EventDispatcher\EventDispatcher->dispatch() (Line: 188)
  Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
  Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
  Drupal\Core\StackMiddleware\Session->handle() (Line: 30)
  Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
  Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
  Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 203)
  Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 140)
  Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 89)
  Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
  Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
  Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 71)
  Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 54)
  Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 753)
  Drupal\Core\DrupalKernel->handle() (Line: 34)
  Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run() (Line: 32)
  require() (Line: 22)
  require_once() (Line: 13)