diff --git a/app/controllers/pages_controller.rb b/app/controllers/pages_controller.rb
index 999fdbce2..fec439ac2 100644
--- a/app/controllers/pages_controller.rb
+++ b/app/controllers/pages_controller.rb
@@ -188,9 +188,11 @@ class PagesController < ApplicationController
         @item = Item.where(:category => category_ids).first
       else
         if params[:action] && params[:action] == "show_from_link"
-            model = params[:app_action].classify.constantize
-            item = model.find(params[:id])
-            @item = Item.where(:category => [item.category_id.to_s]).first
+            model = params[:app_action].classify.constantize rescue nil
+            if !model.nil?
+              item = model.find(params[:id])
+              @item = Item.where(:category => [item.category_id.to_s]).first
+            end
         end
       end