No Light Style Social Icons

Hi,

For some reason there are no style=”light” social icons on my theme install. I haven’t changed any of the code on this page, but you can compare the one on my site with the one on your demo site:

My site: http://www.kisstocure.com/?page_id=2238
Demo site: http://hb-themes.com/themes/highend_wp/social-icons/

I want the light ones, like on the bottom two examples, on my site, but they seem to be missing. Is there anything I can do to fix this?

Thanks in advance.