Fatal error: Uncaught Error: Interface "Magento\Framework\App\ActionInterface" not found in /var/www/magento/html/app/code/BBNT/UpdateSimpleProducts/Controller/Index/Update.php:9
Stack trace:
#0 {main}
thrown in /var/www/magento/html/app/code/BBNT/UpdateSimpleProducts/Controller/Index/Update.php on line 9