Fatal error: Uncaught Error: Class 'Magento\Framework\Exception\AbstractAggregateException' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework/Exception/CouldNotSaveException.php:13 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/Exception/CouldNotSaveException.php on line 13