Fatal error: Uncaught Error: Class "ContaoCommunityAlliance\Composer\Plugin\Installer\AbstractModuleInstaller" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao-community-alliance/composer-plugin/src/Installer/ContaoModuleInstaller.php:36 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/contao-community-alliance/composer-plugin/src/Installer/ContaoModuleInstaller.php on line 36