Redmine

When I upgrade to Redmine 6 I get a Passenger error:

App 153642 output: /var/lib/gems/3.1.0/gems/passenger-6.0.23/src/helper-scripts/rack-preloader.rb:29:in `<main>'
[ E 2024-12-19 13:44:18.4588 57051/Tg age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /data/redmine: The application encountered the following error: wrong number of arguments (given 2, expected 1) (ArgumentError)
Error ID: 2e4863e4
Error details saved to: /tmp/passenger-error-OwoByr.html

[ E 2024-12-19 13:44:18.4611 57051/T9 age/Cor/Con/CheckoutSession.cpp:282 ]: [Client 1-1] Cannot checkout session because a spawning error occurred. The identifier of the error is 2e4863e4. Please see earlier logs for details about the error.

I tried several times with 6.0.0, 6.0.1, 6.0.2 and updating all plugins and Passenger. But I keep getting this error.

How do I solve this?

Regards,
René