complete page error handler logic

app/controllers/pages_controller.rb

@@ -76,7 +76,7 @@ class PagesController < ApplicationController
     end
     @item = Item.where(module_app_id: module_app.id,app_frontend_url:params[:app_action]).all_of("tag" => {"$in" => [nil,'']},"category" => { "$in" => [nil,'']}).first unless @item
     @item = Item.where(module_app_id: module_app.id,app_frontend_url:params[:app_action]).first unless @item
-    raise PageError,'Missing Frontend Page'
+    raise PageError,'Missing Frontend Page' if @item.nil?
   end
   
   def save_from_no_lang_for_page