The application could not run because of the following error:
#0 /var/klenkes/frontend-prod/vendor/ruflin/elastica/lib/Elastica/Request.php(194): Elastica\Transport\Http->exec() #1 /var/klenkes/frontend-prod/vendor/ruflin/elastica/lib/Elastica/Client.php(689): Elastica\Request->send() #2 /var/klenkes/frontend-prod/vendor/ruflin/elastica/lib/Elastica/Search.php(460): Elastica\Client->request() #3 /var/klenkes/frontend-prod/classes/Elastic.php(75): Elastica\Search->search() #4 /var/klenkes/frontend-prod/classes/Lists/ElasticList.php(80): Klenkes\Elastic->search() #5 /var/klenkes/frontend-prod/classes/Controller/LegacyController.php(32): Klenkes\Lists\ElasticList->run() #6 /var/klenkes/frontend-prod/classes/Routing.php(73): Klenkes\Controller\LegacyController->render() #7 [internal function]: Klenkes\Routing->Klenkes\{closure}() #8 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func() #9 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke() #10 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke() #11 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack() #12 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/App.php(503): Slim\Route->run() #13 /var/klenkes/frontend-prod/www/index.php(10): Slim\App->__invoke() #14 [internal function]: Closure->{closure}() #15 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array() #16 [internal function]: Slim\DeferredCallable->__invoke() #17 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func() #18 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim\{closure}() #19 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack() #20 /var/klenkes/frontend-prod/vendor/slim/slim/Slim/App.php(297): Slim\App->process() #21 /var/klenkes/frontend-prod/www/index.php(26): Slim\App->run() #22 {main}