Fatal error: Uncaught Error: Class 'Contao\InstallationBundle\Database\Installer' not found in /home/eberhardschwarze/public_html/var/cache/prod/ContainerRjol8xm/getContao_InstallerService.php:8 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/var/cache/prod/ContainerRjol8xm/getContao_InstallerService.php on line 8