Help getting twitter cards working


Hi there,

I have a wordpress blog with Yeast SEO, and I have validated my twitter cards. When I post the URLs to twitter, the twitter card doesn’t work.

If the validator says it is working fine, do I still need to wait a period of time before the card is approved, or should it work immediately after success on the twitter card validator?

My website is

but actually I get this:

Can anyone advise what is up. From what I can see it should work fine…