Fatal error: Uncaught Error: Class 'Magento\Framework\App\Action\Action' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog/Controller/Product/Frontend/Action/Synchronize.php:16 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog/Controller/Product/Frontend/Action/Synchronize.php on line 16