Fatal error: Uncaught Error: Class 'Monolog\Handler\AbstractHandler' not found in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\monolog-bridge\Handler\NotifierHandler.php:25 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\monolog-bridge\Handler\NotifierHandler.php on line 25