Warning: Undefined array key "render element" in Drupal\Core\Theme\ThemeManager->render() (line 200 of core/lib/Drupal/Core/Theme/ThemeManager.php).
Drupal\Core\Theme\ThemeManager->render('page_404', Array) (Line: 422) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer->render(Array, ) (Line: 241) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 242) 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, 2) (Line: 81) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 2, 1) (Line: 58) Drupal\Core\StackMiddleware\Session->handle(Object, 2, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 2, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 2, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 2, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 2, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 2, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 2) (Line: 166) Drupal\Core\EventSubscriber\DefaultExceptionHtmlSubscriber->makeSubrequest(Object, '/404', 404) (Line: 119) Drupal\Core\EventSubscriber\CustomPageExceptionHtmlSubscriber->makeSubrequestToCustomPath(Object, '/404', 404) (Line: 81) Drupal\Core\EventSubscriber\CustomPageExceptionHtmlSubscriber->on404(Object) (Line: 109) Drupal\Core\EventSubscriber\HttpExceptionSubscriberBase->onException(Object, 'kernel.exception', Object) call_user_func(Array, Object, 'kernel.exception', Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.exception') (Line: 229) Symfony\Component\HttpKernel\HttpKernel->handleThrowable(Object, Object, 1) (Line: 92) 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: 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: 709) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
Warning: Undefined array key "render element" in Drupal\Core\Theme\ThemeManager->render() (line 202 of core/lib/Drupal/Core/Theme/ThemeManager.php).
Drupal\Core\Theme\ThemeManager->render('page_404', Array) (Line: 422) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer->render(Array, ) (Line: 241) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 242) 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, 2) (Line: 81) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 2, 1) (Line: 58) Drupal\Core\StackMiddleware\Session->handle(Object, 2, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 2, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 2, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 2, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 2, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 2, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 2) (Line: 166) Drupal\Core\EventSubscriber\DefaultExceptionHtmlSubscriber->makeSubrequest(Object, '/404', 404) (Line: 119) Drupal\Core\EventSubscriber\CustomPageExceptionHtmlSubscriber->makeSubrequestToCustomPath(Object, '/404', 404) (Line: 81) Drupal\Core\EventSubscriber\CustomPageExceptionHtmlSubscriber->on404(Object) (Line: 109) Drupal\Core\EventSubscriber\HttpExceptionSubscriberBase->onException(Object, 'kernel.exception', Object) call_user_func(Array, Object, 'kernel.exception', Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.exception') (Line: 229) Symfony\Component\HttpKernel\HttpKernel->handleThrowable(Object, Object, 1) (Line: 92) 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: 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: 709) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)