Fatal error: Uncaught Error: Class 'Symfony\Component\Filesystem\Filesystem' not found in /home/realadvivf/old_versions/V2.0.3/update-scripts/100/postupdate.php:3 Stack trace: #0 {main} thrown in /home/realadvivf/old_versions/V2.0.3/update-scripts/100/postupdate.php on line 3