Fatal error: Uncaught Error: Class 'Magento\Catalog\Controller\Adminhtml\Product\Index' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Controller/Adminhtml/Downloadable/Product/Edit/Index.php:9 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Controller/Adminhtml/Downloadable/Product/Edit/Index.php on line 9