Error popup only shows on flash[:error]

app/controllers/pages_controller.rb

@@ -78,7 +78,7 @@ class PagesController < ApplicationController
   protected
   def save_from_no_lang_for_page
        if @item.nil? or !@item.enabled_for_lang(I18n.locale.to_s)
-          flash[:notice] = t('sys.module_page_lang_not_support')
+          flash[:error] = t('sys.module_page_lang_not_support')
           redirect_to '/'
         return true
       else