Error message
Deprecated function: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\search_api_page\PathProcessor\PathProcessorSearchApiPage->processOutbound() (line 110 of modules/contrib/search_api_page/src/PathProcessor/PathProcessorSearchApiPage.php).Drupal\search_api_page\PathProcessor\PathProcessorSearchApiPage->processOutbound('/', Array, Object, Object) (Line: 108) Drupal\Core\PathProcessor\PathProcessorManager->processOutbound('/', Array, Object, Object) (Line: 394) Drupal\Core\Routing\UrlGenerator->processPath('/', Array, Object) (Line: 296) Drupal\Core\Routing\UrlGenerator->generateFromRoute('', Array, Array, 1) (Line: 105) Drupal\Core\Render\MetadataBubblingUrlGenerator->generateFromRoute('', Array, Array) (Line: 68) Drupal\Core\Routing\RedirectDestination->get() (Line: 51) Drupal\Core\Routing\RedirectDestination->getAsArray() (Line: 164) Drupal\Core\EventSubscriber\DefaultExceptionHtmlSubscriber->makeSubrequest(Object, '/search404', 404) (Line: 119) Drupal\Core\EventSubscriber\CustomPageExceptionHtmlSubscriber->makeSubrequestToCustomPath(Object, '/search404', 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: 50) Drupal\ban\BanMiddleware->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: 718) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
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