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