Fatal error: Uncaught Error: Interface 'Magento\Framework\Mail\MessageInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework/Mail/MailMessageInterface.php:16 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/Mail/MailMessageInterface.php on line 16