facebook like not displaying

Hi Guys,
Having a bit of a problem with the facebook like buttons. What is happening is they are not displaying and its just showing an empty white space…
http://i.imgur.com/CUi8h7q.png
site is…
http://focusonleadership.com.au/

What could be the problem?
Thanks in advance and happy holidays,

Najam D.

http://ww.wp.xz.cn/plugins/wp-socializer/