Fatal error: Uncaught Error: Class "Illuminate\Foundation\Exceptions\Handler" not found in /opt/lampp/htdocs/msjlocker/vendor/laravel-frontend-presets/argon/src/argon-stubs/app/Exceptions/Handler.php:8 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjlocker/vendor/laravel-frontend-presets/argon/src/argon-stubs/app/Exceptions/Handler.php on line 8