I’ve created a new WiKi page for a project that already have some and now I can’t access to this project.

Below are the production.log details:
W, [2016-09-09T01:15:16.195400 #34001] WARN — : [auth_saml] Missing settings from ‘/opt/openproject/config/plugins/auth_saml/set
tings.yml’, skipping omniauth registration.
W, [2016-09-09T01:15:16.723609 #34001] WARN — : hook registered
F, [2016-09-09T03:25:24.222078 #30085] FATAL — :
ActionView::Template::Error (Child already added):
62:

63:

64:
65: <% main_menu = render_main_menu(@project) %>
66: <% side_displayed = content_for?(:sidebar) || content_for?(:main_menu) || !main_menu.blank? %>
67: <% initial_classes = initial_menu_classes(side_displayed, show_decoration) %>
68: <div id=“wrapper” style=“<%= initial_menu_styles %>” class=“<%= initial_classes %>”
lib/redmine/menu_manager/tree_node.rb:78:in `add’
lib/redmine/menu_manager/mapper.rb:89:in `push’
lib/redmine/menu_manager/menu_helper.rb:62:in `block (3 levels) in build_wiki_menus’
lib/redmine/menu_manager/menu_helper.rb:61:in `block (2 levels) in build_wiki_menus’
lib/redmine/menu_manager.rb:63:in `call’
lib/redmine/menu_manager.rb:63:in `block in items’
lib/redmine/menu_manager.rb:62:in `each’
lib/redmine/menu_manager.rb:62:in `items’
lib/redmine/menu_manager/menu_helper.rb:230:in `menu_items_for’
lib/redmine/menu_manager/menu_helper.rb:105:in `render_menu’
lib/redmine/menu_manager/menu_helper.rb:45:in `render_main_menu’
app/views/layouts/base.html.erb:65:in `_app_views_layouts_base_html_erb__713689735093788821_69885853755760’
app/middleware/reset_current_user.rb:47:in `call’
app/middleware/params_parser_with_exclusion.rb:40:in `call’