Redmine

Hello good People,

now i've the next problem and i hope somebody can help me:

Started GET "/custom_fields/32/edit" for 10.20.1.35 at 2017-06-30 13:32:56 +0200
Processing by CustomFieldsController#edit as HTML
  Parameters: {"id"=>"32"}
  Current user: xx.xxx (id=1080)
  Rendered custom_fields/formats/_list.html.erb (15.6ms)
TinyTds::Error: A column has been specified more than once in the order by list. Columns in the order by list must be unique.: EXEC sp_executesql N'SELECT [roles].* FROM [roles] WHERE [roles].[builtin] = @0  ORDER BY roles.position ASC, roles.builtin ASC, roles.position ASC', N'@0 int', @0 = 0
  Rendered custom_fields/_form.html.erb (203.1ms)
  Rendered custom_fields/edit.html.erb within layouts/admin (203.1ms)
Completed 500 Internal Server Error in 219ms (ActiveRecord: 0.0ms)

ActionView::Template::Error (TinyTds::Error: A column has been specified more than once in the order by list. Columns in the order by list must be unique.: EXEC sp_executesql N'SELECT [roles].* FROM [roles] WHERE [roles].[builtin] = @0  ORDER BY roles.position ASC, roles.builtin ASC, roles.position ASC', N'@0 int', @0 = 0):
    44:               :data => {:enables => '.custom_field_role input'} %>
    45:         <%= l(:label_visibility_roles) %>:
    46:       </label>
    47:       <% Role.givable.sorted.each do |role| %>
    48:         <label class="block custom_field_role" style="padding-left:2em;">
    49:           <%= check_box_tag 'custom_field[role_ids][]', role.id, @custom_field.roles.include?(role), :id => nil %>
    50:           <%= role.name %>
  app/views/custom_fields/_form.html.erb:47:in `_app_views_custom_fields__form_html_erb___901772835_59902284'
  app/views/custom_fields/edit.html.erb:6:in `block in _app_views_custom_fields_edit_html_erb__233822614_60504744'
  app/helpers/application_helper.rb:1026:in `labelled_form_for'
  app/views/custom_fields/edit.html.erb:5:in `_app_views_custom_fields_edit_html_erb__233822614_60504744'

My Config is:
Redmine version 3.0.4.stable
Ruby version 2.2.6-p396 (2016-11-15) [i386-mingw32]
Rails version 4.2.3
Environment production
Database adapter SQLServer

Please help me to find a solution - but i'm not a RoR Developer!

Best Regards

René