Fatal error: Uncaught Error: Interface "Magento\Framework\Event\ObserverInterface" not found in /var/www/magento/html/app/code/Aheadworks/BlogSearch/Observer/Blog/Post/AfterDelete.php:28 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Aheadworks/BlogSearch/Observer/Blog/Post/AfterDelete.php on line 28