Fatal error: Uncaught Error: Class "Kirby\Cms\ModelWithContent" not found in /volume1/web/public/kirbi/kirby-4.1.0/src/Cms/User.php on line 28

Error: Class "Kirby\Cms\ModelWithContent" not found in /volume1/web/public/kirbi/kirby-4.1.0/src/Cms/User.php on line 28

Call Stack:
    0.0277     356344   1. {main}() /volume1/web/public/kirbi/kirby-4.1.0/src/Cms/User.php:0