Fatal error: Uncaught Error: Class "Monolog\Handler\AbstractProcessingHandler" not found in /home/technoon/public_html/demo/yondy/vendor/symfony/monolog-bridge/Handler/MailerHandler.php:29 Stack trace: #0 {main} thrown in /home/technoon/public_html/demo/yondy/vendor/symfony/monolog-bridge/Handler/MailerHandler.php on line 29