fb-like doesn′t work anymore

hi!

since a few days (maybe since the upgrade to 3.2.) the facebook-like-button on my website (www.die-wollnys.tv) doesn′t work anymore. it still shows up, but when you click it, it just flashes and goes back to zero.

strange, but the older buttons still work and are counting the likes.

any idea what I have to do to make the new buttons work?
I have tried several fb-like-plugins, but it appears everywhere to be the same problem.
I have set the rights of the specific plugin-folder to 777 already.

thank you a lot in advance!