Add this buttons went missing.

After doing a update all plug-ins, the AddThis buttons vanished. The website is http://www.projectsforasia.com. They are missing from the footer of default templates such as http://www.projectsforasia.com/hhsponsorship/. They are missing from the footer of showcase templates such as http://www.projectsforasia.com. They are also missing from the footer and sidebar in sidebar templates such as http://www.projectsforasia.com/manop/. I am using a custom Twenty-Eleven child-theme. I can see the the div where the code is but it just isn’t showing up. Any help would be appreciated. Thank you.

https://ww.wp.xz.cn/plugins/addthis/