Merge pull request #469 in RMS/api-main-service from red-develop to RMSv2

* commit '93f2d91a':
  fixing on completed action at form

app/businesslayer/changerequest/change_request.py

@@ -651,7 +651,7 @@ def cr_routing_actions(approver_instance, current_user):
         the_last_vendor = check_vendor_level(
             'last', level, form_code)
 
-        if (current_user == the_last_vendor.user.code and
+        if (the_last_vendor and current_user == the_last_vendor.user.code and
             level == the_last_vendor.level):
 
             update_form_header_status(form_code, 'Approved')