Problem with website sidebar. Please Help!

The sidebar on my website has some major issues going on. Most of the widgets are not showing up at all, and another got moved all the way to the bottom of the page leaving a large gap in the middle. From the backend of the website, everything looks fine. The widgets are all in the right places, but when I view the site, it is very apparent that something is not right. Any ideas what could be causing this?

The problem might be browser related as it only seems to be happening in Firefox and Chrome. Internet explorer looks fine (except for the video being too big for the side bar)

The website is
https://www.stlhealthyfamilies.org