Conecting to WP.org and getting "invalid card type"

The21Mag · 2013-10-09T23:54:59.000Z

Im trying to connect my blog to twitter cards but in validator i allways get:
Invalid type card.
This ies the blog
http://blog.the21.es/
This is an example post
http://blog.the21.es/conecta-los-puntos/
And the Meta tags inluided in that post:

¿Can anybody please help me?

rchoi · 2013-10-11T00:44:51.000Z

Please try again. we were having issues yesterday.

Thanks!