Second facebook like button gone / disappearing

I have 2 facebook like buttons on each page of my site, one on top, for the home page, and one immediately below the product title, for the current product page.

It’s been all right for over a year and today the 2nd button disappears. It’s been at the left of the Pin It button until yesterday. Anybody knows why? What code should I modify to make it re-appear again or is it possible at all now?

Thanks a lot!

How are you adding in that button? However it’s being inserted, the URL is getting chewed up a bit and spat out with some erroneous code in the URL.

That’s it. I used rawurlencode() to encode the current product page URL. It’s been fine but they probably changed their algorithm to not allow that recently. Thank you!