Fatal error: Uncaught Error: Class 'Pimcore\Install\Installer' not found in /home/realadvivf/v2.2/var/installer/cache/prod/ContainerUhwlzni/getInstallerService.php:8 Stack trace: #0 {main} thrown in /home/realadvivf/v2.2/var/installer/cache/prod/ContainerUhwlzni/getInstallerService.php on line 8