rescue very old site

lib/ask/engine.rb

@@ -56,7 +56,11 @@ module Ask
       OrbitApp.registration "Ask", :type => "ModuleApp" do
         module_label "ask.ask"
         base_url File.expand_path File.dirname(__FILE__)
-        set_keyword_contstraints ['/asks']
+        begin
+          set_keyword_contstraints ['/asks']
+        rescue => e
+          puts ['the site is too old']
+        end
         widget_methods ["widget"]
         widget_settings [{"data_count"=>10}]
         # taggable "AskQuestion"
@@ -153,4 +157,4 @@ module Ask
       end
     end
   end
-end
+end