Help my right hand sidebar disappeared completely!

Help My right hand sidebar disappeared COMPLETELY!

I didn’t make any changes that would have caused this. At least none that i know of? I have the proper call

<?php get_sidebar();?>

in the coding. It’s not the common sidebar wrapped around to the bottom issue, it’s actually gone on all pages.

here’s the link

and my code…sans the links and ad code

[code deleted as per forum rules - please use the pastebin]