polymorphic form error backtrace

backtrace.log

ActionView::Template::Error (undefined method `default_order' for #<Class:0xb4dbc7ac>):
0  app/views/taglibs/auto/rapid/forms.dryml:6:in `form__for_comment'
  app/views/taglibs/auto/rapid/forms.dryml:4:in `form__for_comment'
  app/views/taglibs/auto/rapid/forms.dryml:4:in `form__for_comment'
  app/views/taglibs/auto/rapid/forms.dryml:3:in `form__for_comment'
  app/views/taglibs/application.dryml:18:in `show_page'
  app/views/taglibs/application.dryml:14:in `show_page'
  app/views/taglibs/application.dryml:14:in `show_page'
  app/views/taglibs/application.dryml:13:in `show_page'
  app/views/taglibs/auto/rapid/pages.dryml:220:in `show_page__for_post'
  app/views/taglibs/auto/rapid/pages.dryml:203:in `show_page__for_post'
  app/views/taglibs/themes/clean/clean.dryml:2:in `page'
  app/views/taglibs/themes/clean/clean.dryml:1:in `page'
  app/views/taglibs/auto/rapid/pages.dryml:199:in `show_page__for_post'
  app/views/taglibs/auto/rapid/pages.dryml:198:in `show_page__for_post'
  app/views/taglibs/application.dryml:12:in `show_page'
  app/views/taglibs/application.dryml:11:in `show_page'

Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.8ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (9.0ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.9/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (15.9ms)