getting "displaySubmitted() on null" error if I try to view home page

Using D8.5.4 … Yesterday, I had a working site. The only thing I’ve done is add a couple new fields and import new nodes to a couple different content types, using Feeds. After I was done, everything was perfectly fine.

Today, I come back to the site to do some work, and I can’t load the home page. Just the white screen of death with “The website encountered an unexpected error. Please try again later.” (it’s still the default template home page, just showing the latest posts. I can load any other page but the home page.

I can still view the Admin pages, and in the log, I see a string of errors from when I try to access the front page ( this site is local on my computer). Assuming it might have something to do with the Feeds module, I uninstalled that. But no luck.

I wouldn’t even begin to know where to start with this. The “Error: Call to a member function displaySubmitted() on null in template_preprocess_node() … ” errors: 

Error: Call to a member function displaySubmitted() on null in template_preprocess_node() (line 633 of /Users/me/Sites/devdesktop/theWebSite/core/modules/node/node.module) #0 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Theme/ThemeManager.php(287): template_preprocess_node(Array, 'node', Array) #1 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(437): DrupalCoreThemeThemeManager->render('node', Array) #2 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(195): DrupalCoreRenderRenderer->doRender(Array, false) #3 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Template/TwigExtension.php(490): DrupalCoreRenderRenderer->render(Array) #4 /Users/me/Sites/devdesktop/theWebSite/sites/default/files/php/twig/5b23f4c1d3bcf_views-view-unformatted.ht_5tAAlf0t8sZkVGcyvpcZujcyZ/lUej8zrJC5dfoRChm99yDEiEu_qBGKrarld7N1-yqcw.php(64): DrupalCoreTemplateTwigExtension->escapeFilter(Object(DrupalCoreTemplateTwigEnvironment), Array, 'html', NULL, true) #5 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(432): __TwigTemplate_c5f88a1c8a45d2893b4f99d05ad0c48e79698bb1233ee134b2607365532499f4->doDisplay(Array, Array) #6 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(403): Twig_Template->displayWithErrorHandling(Array, Array) #7 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(411): Twig_Template->display(Array) #8 /Users/me/Sites/devdesktop/theWebSite/core/themes/engines/twig/twig.engine(64): Twig_Template->render(Array) #9 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template('core/themes/cla...', Array) #10 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(437): DrupalCoreThemeThemeManager->render('views_view_unfo...', Array) #11 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(450): DrupalCoreRenderRenderer->doRender(Array) #12 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(195): DrupalCoreRenderRenderer->doRender(Array, false) #13 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Template/TwigExtension.php(490): DrupalCoreRenderRenderer->render(Array) #14 /Users/me/Sites/devdesktop/theWebSite/sites/default/files/php/twig/5b23f4c1d3bcf_views-view.html.twig_My8wCKNyJv0eBmdCJ1uPxYt8x/lBf-dUyQeU6c3VA38Z7v-nmAgyR9-kiB_g-UOzB0e9M.php(114): DrupalCoreTemplateTwigExtension->escapeFilter(Object(DrupalCoreTemplateTwigEnvironment), Array, 'html', NULL, true) #15 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(432): __TwigTemplate_0b39505df84b691c5a3640573ee0790767231d2654971965753660bef51abd95->doDisplay(Array, Array) #16 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(403): Twig_Template->displayWithErrorHandling(Array, Array) #17 /Users/me/Sites/devdesktop/theWebSite/vendor/twig/twig/lib/Twig/Template.php(411): Twig_Template->display(Array) #18 /Users/me/Sites/devdesktop/theWebSite/core/themes/engines/twig/twig.engine(64): Twig_Template->render(Array) #19 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Theme/ThemeManager.php(384): twig_render_template('core/themes/cla...', Array) #20 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(437): DrupalCoreThemeThemeManager->render('views_view', Array) #21 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(450): DrupalCoreRenderRenderer->doRender(Array) #22 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(195): DrupalCoreRenderRenderer->doRender(Array, false) #23 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(226): DrupalCoreRenderRenderer->render(Array, false) #24 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/Renderer.php(582): DrupalCoreRenderMainContentHtmlRenderer->DrupalCoreRenderMainContent{closure}() #25 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(227): DrupalCoreRenderRenderer->executeInRenderContext(Object(DrupalCoreRenderRenderContext), Object(Closure)) #26 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(117): DrupalCoreRenderMainContentHtmlRenderer->prepare(Array, Object(SymfonyComponentHttpFoundationRequest), Object(DrupalCoreRoutingCurrentRouteMatch)) #27 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php(90): DrupalCoreRenderMainContentHtmlRenderer->renderResponse(Array, Object(SymfonyComponentHttpFoundationRequest), Object(DrupalCoreRoutingCurrentRouteMatch)) #28 [internal function]: DrupalCoreEventSubscriberMainContentViewSubscriber->onViewRenderArray(Object(SymfonyComponentHttpKernelEventGetResponseForControllerResultEvent), 'kernel.view', Object(DrupalComponentEventDispatcherContainerAwareEventDispatcher)) #29 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(111): call_user_func(Array, Object(SymfonyComponentHttpKernelEventGetResponseForControllerResultEvent), 'kernel.view', Object(DrupalComponentEventDispatcherContainerAwareEventDispatcher)) #30 /Users/me/Sites/devdesktop/theWebSite/vendor/symfony/http-kernel/HttpKernel.php(156): DrupalComponentEventDispatcherContainerAwareEventDispatcher->dispatch('kernel.view', Object(SymfonyComponentHttpKernelEventGetResponseForControllerResultEvent)) #31 /Users/me/Sites/devdesktop/theWebSite/vendor/symfony/http-kernel/HttpKernel.php(68): SymfonyComponentHttpKernelHttpKernel->handleRaw(Object(SymfonyComponentHttpFoundationRequest), 1) #32 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/StackMiddleware/Session.php(57): SymfonyComponentHttpKernelHttpKernel->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #33 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): DrupalCoreStackMiddlewareSession->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #34 /Users/me/Sites/devdesktop/theWebSite/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): DrupalCoreStackMiddlewareKernelPreHandle->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #35 /Users/me/Sites/devdesktop/theWebSite/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupalpage_cacheStackMiddlewarePageCache->pass(Object(SymfonyComponentHttpFoundationRequest), 1, true) #36 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupalpage_cacheStackMiddlewarePageCache->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #37 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): DrupalCoreStackMiddlewareReverseProxyMiddleware->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #38 /Users/me/Sites/devdesktop/theWebSite/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): DrupalCoreStackMiddlewareNegotiationMiddleware->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #39 /Users/me/Sites/devdesktop/theWebSite/core/lib/Drupal/Core/DrupalKernel.php(666): StackStackedHttpKernel->handle(Object(SymfonyComponentHttpFoundationRequest), 1, true) #40 /Users/me/Sites/devdesktop/theWebSite/index.php(19): DrupalCoreDrupalKernel->handle(Object(SymfonyComponentHttpFoundationRequest)) #41 {main}.
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Source: https://www.drupal.org/taxonomy/term/22/feed