diff --git a/app/helpers/orbit_backend_helper.rb b/app/helpers/orbit_backend_helper.rb
index ba2a87e..442249d 100644
--- a/app/helpers/orbit_backend_helper.rb
+++ b/app/helpers/orbit_backend_helper.rb
@@ -355,7 +355,7 @@ module OrbitBackendHelper
       if object.is_a?(klass.constantize)
         autorized ||= object.user_can_sub_manage?(current_user)
       else
-        autorized ||= object.send(klass.underscore).user_can_sub_manage?(current_user)
+        autorized ||= object.send(klass.underscore).user_can_sub_manage?(current_user) rescue nil
       end
       autorized
     end
diff --git a/built_in_extensions.rb b/built_in_extensions.rb
index 7d82d35..abc2862 100644
--- a/built_in_extensions.rb
+++ b/built_in_extensions.rb
@@ -19,3 +19,5 @@ gem 'web_resource', '0.0.1', :git => 'git@gitlab.tp.rulingcom.com:root/orbit-web
 gem 'ask', '0.0.1', :git => 'git@gitlab.tp.rulingcom.com:root/orbit-ask.git', :branch => 'ntu_ga'
 gem 'survey', '0.0.1', :git => 'git@gitlab.tp.rulingcom.com:root/orbit-survey.git', :branch => 'ntu_ga'
 gem 'archive', '0.0.1', :git => 'git@gitlab.tp.rulingcom.com:root/orbit-archive.git', :branch => 'ntu_ga'
+gem 'faq', '0.0.1', :git => "git@gitlab.tp.rulingcom.com:root/orbit-faq.git"
+gem 'feed', '0.0.1', :git => 'git@gitlab.tp.rulingcom.com:root/orbit-feed.git'