Fatal error: Uncaught Error: Class "Kirby\Panel\Model" not found in /volume1/web/public/kirbi/kirby-4.1.0/src/Panel/User.php on line 22

Error: Class "Kirby\Panel\Model" not found in /volume1/web/public/kirbi/kirby-4.1.0/src/Panel/User.php on line 22

Call Stack:
    0.0571     354104   1. {main}() /volume1/web/public/kirbi/kirby-4.1.0/src/Panel/User.php:0