Getting Message from application: Invalid option key: raise_on_unfiltered_parameters= (RuntimeError) error while running production mode?
On the config/initializers/new_framework_defaults.rb find a line that includes raise_on_unfiltered_parameters and delete it.
For some other cases, you might just have to look into application.rb and delete the line config.action_controller.raise_on_unfiltered_parameters = true.