give test url (where you have those share buttons) so that someone can check it
You have duplicate links. One is in it's place(inside the div) but the other one is outside(what's causing it).
As noted here
The
<a href="http://www.iksdee.nl/misc.php?action=syndication">
</a>
is not inside any li. So removing it off whatever template it's located in will fix it.
Thanks LucasC, you got a new reputation!