According to the validator, you do have one error that could be contributing:
Error Line 71, Column 6: end tag for "div" omitted, but OMITTAG NO was specified.
You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".
Info Line 27, Column 0: start tag was here.
Fix that, and we'll see what else could be the problem.