Blank space on front page

Hey there

I used the AddThis plugin for following and sharing. Unfortunately I had to replace it since I you updated to the newest version 6.0. The issue is, that the newest plugin adds some blank space under every article on the front page, what looks horrible.

Would be really, really thankful, if you could fix this as soon as possible.

Thanks in advance
Igor

The page I need help with: [log in to see the link]