fix uploading error due to user action decoder can not handle uploading file

app/controllers/application_controller.rb

@@ -29,7 +29,7 @@ class ApplicationController < ActionController::Base
 
   def set_current_user
     User.current = current_or_guest_user
-    UserActionRecoder.perform(current_or_guest_user,params)
+    UserActionRecoder.perform(current_or_guest_user,params.to_s)
   end
 
   def front_end_available(module_app_title='')