Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\File\File" not found in /home/bimmertest/BookStack/vendor/symfony/http-foundation/File/UploadedFile.php:32 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/symfony/http-foundation/File/UploadedFile.php on line 32