Redmine

I´m getting error 500 on try create new project on redmine.

here information of my environment.

Environment:
Redmine version 3.3.0.stable
Ruby version 2.3.1-p112 (2016-04-26) [x86_64-linux]
Rails version 4.2.6
Environment production
Database adapter Mysql2
SCM:
Subversion 1.7.4
Git 1.7.12.4
Filesystem
Redmine plugins:
advanced_roadmap_v2 2.4.3
extended_fields 0.2.3
inline_edit_issues 0.0.1
redmine_agile 1.3.11
redmine_app__space 1.0.4
redmine_app_timesheets 1.5.9
redmine_default_columns 0.1.1
redmine_gitlab_hook 0.1.3
scrum2b 2.0

follow details of my production log..

Current user: p052675 (id=5)
Rendered projects/_form.html.erb (11.6ms)
Rendered projects/new.html.erb within layouts/base (12.2ms)
Completed 500 Internal Server Error in 34ms (ActiveRecord: 5.0ms)

ActionView::Template::Error (private method `open' called for nil:NilClass):
20: <p><%= f.check_box :inherit_members ></p>
21: < end >
22:
23: < if @project.safe_attribute?('default_version_id') && (default_version_options = project_default_version_options(Herve Harster)).present? >
24: <p><= f.select :default_version_id, project_default_version_options(Herve Harster), :include_blank => true ></p>
25: < end %>
26:
app/helpers/projects_helper.rb:91:in `project_default_version_options'
app/views/projects/_form.html.erb:23:in `_app_views_projects__form_html_erb__2342239658045514223_23968052744520'
app/views/projects/new.html.erb:4:in `block in app_views_projects_new_html_erb__382974105860917633_23968052791940'
app/helpers/application_helper.rb:1051:in `labelled_form_for'
app/views/projects/new.html.erb:3:in `_app_views_projects_new_html_erb___382974105860917633_23968052791940'
lib/redmine/sudo_mode.rb:63:in `sudo_mode'

Can somebody help me?