old_contents: # -*- coding: utf-8 -*-
  
  from openerp.http import request
  from openerp.addons.website_product_subscription.controllers.main import WebsiteProductSubscription
  
  class WebsiteProductSubscription(WebsiteProductSubscription):
      
      def get_countries(self):
          countries = super(WebsiteProductSubscription,self).get_countries()
          shipping_countries = request.env['delivery.carrier']._get_shipping_country(countries)
          return shipping_countries
  
new_contents: # -*- coding: utf-8 -*-
  
  from openerp.http import request
  from openerp.addons.website_product_subscription.controllers.main import WebsiteProductSubscription
  
  class WebsiteProductSubscription(WebsiteProductSubscription):
      
      def get_countries(self):
          countries = super(WebsiteProductSubscription,self).get_countries()
          shipping_countries = request.env['delivery.carrier'].sudo()._get_shipping_country(countries)
          return shipping_countries
  
subject: fix access right access in the controller.