[YouTube-API] Urgent: like button is not working on my video page...

I have a video on youtube. here is link:
http://www.youtube.com/watch?v=GHFHy8sK6kk&feature=player_embedded.
When someone click on like button then nothing happens. Right now i
have 95 likes here but when new users click on like button then it
still remains 95. Can anyone find out any bug?

Note: unlike button working fine but not like.

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