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Symfony\Component\Routing\Exception\InvalidParameterException: Parameter "node" for route "entity.node.canonical" must match "\d+" ("" given) to generate a corresponding URL. in Drupal\Core\Routing\UrlGenerator->doGenerate() (line 209 of core/lib/Drupal/Core/Routing/UrlGenerator.php).
Drupal\Core\Routing\UrlGenerator->getInternalPathFromRoute() (Line: 300) Drupal\Core\Routing\UrlGenerator->generateFromRoute() (Line: 108) Drupal\Core\Render\MetadataBubblingUrlGenerator->generateFromRoute() (Line: 765) Drupal\Core\Url->toString() (Line: 183) Drupal\Core\Utility\LinkGenerator->generate() (Line: 102) Drupal\Core\Render\Element\Link::preRenderLink() call_user_func_array() (Line: 111) Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 859) Drupal\Core\Render\Renderer->doCallback() (Line: 421) Drupal\Core\Render\Renderer->doRender() (Line: 240) Drupal\Core\Render\Renderer->render() (Line: 475) Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 179) __TwigTemplate_875fb074429683986968dc9b0afe0a77->doDisplay() (Line: 394) Twig\Template->displayWithErrorHandling() (Line: 367) Twig\Template->display() (Line: 379) Twig\Template->render() (Line: 38) Twig\TemplateWrapper->render() (Line: 39) twig_render_template() (Line: 348) Drupal\Core\Theme\ThemeManager->render() (Line: 480) Drupal\Core\Render\Renderer->doRender() (Line: 493) Drupal\Core\Render\Renderer->doRender() (Line: 240) Drupal\Core\Render\Renderer->render() (Line: 238) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 627) Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 239) Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 128) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray() call_user_func() (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186) Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 58) Drupal\Core\StackMiddleware\Session->handle() (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 704) Drupal\Core\DrupalKernel->handle() (Line: 19)