page/history/show missing partial pages/history/_show

Started GET "/pages/.../history?authenticity_token=[FILTERED]" for 127.0.0.1 at 2017-08-14 09:23:26 +0000
Processing by Page::HistoryController#show as JS
  Parameters: {"authenticity_token"=>"[FILTERED]", "page_id"=>"..."}
  Rendered ui/_alert.html.haml (0.0ms)
  Rendered page/history/show.js.rjs (4.9ms)
Completed 500 Internal Server Error in 81ms (ActiveRecord: 60.5ms)

ActionView::Template::Error (Missing partial pages/history/_show with {:locale=>[:en], :formats=>[:html], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :haml, :rjs]}. Searched in:
  * "/srv/crabgrass/app/views"
  * "/srv/crabgrass/extensions/pages/discussion_page/app/views"
  * "/srv/crabgrass/extensions/pages/asset_page/app/views"
  * "/srv/crabgrass/extensions/pages/survey_page/app/views"
  * "/srv/crabgrass/extensions/pages/rate_many_page/app/views"
  * "/srv/crabgrass/extensions/pages/gallery_page/app/views"
  * "/srv/crabgrass/extensions/pages/wiki_page/app/views"
  * "/srv/crabgrass/extensions/pages/task_list_page/app/views"
  * "/srv/crabgrass/extensions/pages/ranked_vote_page/app/views"
  * "/srv/crabgrass/extensions/pages/event_page/app/views"
):
    1: standard_update(page)
    2: # page << hide_spinner(@wiki)
    3: page.replace_html 'history_tab',
    4:   :partial => '/pages/history/show', :locals => local_assigns
  app/views/page/history/show.js.rjs:3:in `block in _app_views_page_history_show_js_rjs__572380955235045320_70187113439760'
  app/views/page/history/show.js.rjs:1:in `_app_views_page_history_show_js_rjs__572380955235045320_70187113439760'
  app/controllers/common/application/before_filters.rb:19:in `render_with_view_setup'