Fatal error: Uncaught Error: Class "Monolog\Handler\AbstractProcessingHandler" not found in E:\xampp\htdocs\stms\vendor\maximebf\debugbar\src\DebugBar\Bridge\MonologCollector.php:28 Stack trace: #0 {main} thrown in E:\xampp\htdocs\stms\vendor\maximebf\debugbar\src\DebugBar\Bridge\MonologCollector.php on line 28