Fatal error: Uncaught Symfony\Component\DependencyInjection\Exception\InvalidArgumentException: The parameter "slack_alert_enable" must be defined. in /home/xs194772/nfutaba.com/hutaba/var/cache/prod/ContainerXtmnwwx/appProdProjectContainer.php:2220 Stack trace: #0 /home/xs194772/nfutaba.com/hutaba/src/MicroserviceBundle/Slack/Webhook.php(84): ContainerXtmnwwx\appProdProjectContainer->getParameter('slack_alert_ena...') #1 /home/xs194772/nfutaba.com/hutaba/src/CoreBundle/EventListener/Exception/ExceptionSubscriber.php(64): MicroserviceBundle\Slack\Webhook->handleException(Object(Symfony\Component\Debug\Exception\ClassNotFoundException)) #2 /home/xs194772/nfutaba.com/hutaba/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/EventDispatcher.php(214): CoreBundle\EventListener\Exception\ExceptionSubscriber->onKernelException(Object(Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent), 'kernel.exceptio...', Object(Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher)) #3 /home/xs194772/nfutaba.c in /home/xs194772/nfutaba.com/hutaba/var/cache/prod/ContainerXtmnwwx/appProdProjectContainer.php on line 2220