Structured Data Testing Tool Not Working?

Are you getting the following error message when using Google’s Structured Data Testing Tool?

We are sorry. The service you requested is currently unavailable. Please try again later.

Solution:
Try disabling anti-spam plugins such as “Bad Behavior” for wordpress. We found that these plugins can conflict with Google’s tools.

Links:
http://www.google.com/webmasters/tools/richsnippets