Fatal error: Uncaught Error: Class "Concrete\Core\Console\Command" not found in /var/www/html/updates/concrete-cms-9.3.9-remote-updater/concrete/src/Console/Command/GenerateSitemapCommand.php:16 Stack trace: #0 {main} thrown in /var/www/html/updates/concrete-cms-9.3.9-remote-updater/concrete/src/Console/Command/GenerateSitemapCommand.php on line 16