diff --git a/app/controllers/orbit_backend_controller.rb b/app/controllers/orbit_backend_controller.rb
index 7e9fa32a..15afe963 100644
--- a/app/controllers/orbit_backend_controller.rb
+++ b/app/controllers/orbit_backend_controller.rb
@@ -150,7 +150,7 @@ class OrbitBackendController< ApplicationController
 
   def get_with_nil(objects, option, sorted_objects)
     tmp = Array.new 
-    objects.each { |object| tmp << [get_string_value_from_object(object), object] if (object.send(option).count == 0) }
+    objects.each { |object| tmp << [get_string_value_from_object(object), object] if (object.send(option).blank? || (object.send(option).size == 0 rescue nil)) }
     sorted = params[:direction].eql?('asc') ? tmp.sort : tmp.sort.reverse!
     sorted_tmp = sorted.collect {|a| a[1] }
     a = params[:direction].eql?('asc') ? (sorted_tmp + sorted_objects) : (sorted_objects + sorted_tmp)