Update personal_journals_controller.rb

app/controllers/personal_journals_controller.rb

@@ -55,9 +55,9 @@ class PersonalJournalsController < ApplicationController
     end
     choice_value = fields_to_show
     choice_value.unshift("paper_title")
-    choice_show = headers
+    choice_show = headers.select { |key,value| key == "head-title" }
     choice_default = OrbitHelper.params[:locale]!='en' ? "——選取分類——" : "——select class——"
-    choice_show.unshift({"head-title" => choice_default })
+    choice_show.unshift(choice_default)
     {
       "journal_papers" => journal_paper_list,
       "headers" => headers,