Fatal error: Uncaught Error: Class "Contao\InstallationBundle\Database\AbstractVersionUpdate" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/installation-bundle/src/Database/Version440Update.php:20 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao/installation-bundle/src/Database/Version440Update.php on line 20