Redmine

Hello, I can't access to proyect settings after upgrade to the new version 4.0. Log says:

Completed 500 Internal Server Error in 147ms (ActiveRecord: 15.6ms)

ActionView::Template::Error (undefined method `default_assigned_to_id' for #<Project:0x00005652f5b4acf0>
Did you mean? default_assigned_to
default_assigned_to=
default_assignee_id
default_assignee_id?
default_assignee_id=
default_assignee_id_was):
33: <% end >
34:
35: < if @project.safe_attribute?('default_assigned_to_id') >
36: <p><= f.select :default_assigned_to_id, project_default_assigned_to_options(Herve Harster), include_blank: l(:label_none) ></p>
37: < end %>
38: </div>
39:

Can you help me, please?

Thanks and regards

Victor