Fatal error: Uncaught Error: Class "Monolog\Handler\AbstractHandler" not found in /var/www/html/immobilier-des-particuliers.fr/vendor/symfony/monolog-bridge/Handler/NotifierHandler.php:26 Stack trace: #0 {main} thrown in /var/www/html/immobilier-des-particuliers.fr/vendor/symfony/monolog-bridge/Handler/NotifierHandler.php on line 26