Fatal error: Uncaught Error: Class 'Monolog\Handler\GroupHandler' not found in C:\xampp\htdocs\fphosting.eu\sub\payments\airbank\vendor\monolog\monolog\src\Monolog\Handler\FallbackGroupHandler.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fphosting.eu\sub\payments\airbank\vendor\monolog\monolog\src\Monolog\Handler\FallbackGroupHandler.php on line 16