Auf der Website ist ein unvorhergesehener Fehler aufgetreten. Bitte versuchen Sie es später nochmal.
Error: Call to a member function getUrl() on null in cron_citation_cron() (line 33 of /drupal-data/modules/cron_citation/cron_citation.module).
Drupal\ams_event\Plugin\Block\AMSEventBlock->fetch_events_number() (Line: 142) Drupal\ams_event\Plugin\Block\AMSEventBlock->build() (Line: 171) Drupal\block\BlockViewBuilder::preRender(Array) call_user_func_array(Array, Array) (Line: 111) Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render 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: 801) Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 390) Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 204) Drupal\Core\Render\Renderer->render(Array, 1) (Line: 160) Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 596) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 161) Drupal\Core\Render\Renderer->renderPlain(Array) (Line: 175) Drupal\Core\Render\Renderer->renderPlaceholder('', Array) (Line: 678) Drupal\Core\Render\Renderer->replacePlaceholders(Array) (Line: 566) Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 204) Drupal\Core\Render\Renderer->render(Array, 1) (Line: 148) Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 596) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 149) Drupal\Core\Render\Renderer->renderRoot(Array) (Line: 285) Drupal\Core\Render\HtmlResponseAttachmentsProcessor->renderPlaceholders(Object) (Line: 134) Drupal\Core\Render\HtmlResponseAttachmentsProcessor->processAttachments(Object) (Line: 45) Drupal\Core\EventSubscriber\HtmlResponseSubscriber->onRespond(Object, 'kernel.response', Object) call_user_func(Array, Object, 'kernel.response', Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.response') (Line: 214) Symfony\Component\HttpKernel\HttpKernel->filterResponse(Object, Object, 1) (Line: 202) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76) 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: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)