Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\File\UploadedFile' not found in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Http/UploadedFile.php:11 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Http/UploadedFile.php on line 11