PWAL facebook button not liking on facebook

When I hit the like button the window disappears, it shows me the locked content but it doesn't appear on my facebook account as liked.

I get an error in the console:

Use of getAttributeNode() is deprecated. Use getAttribute() instead. _0YbRX5Oww-.js:154
Empty string passed to getElementById(). _0YbRX5Oww-.js:60
"pwal_info_items [" Object { 77658474: Object } "]"

the page where this can be seen is here:

I get the same problem on chrome, firefox and safari. I'm on mac.