internet explorer 8 not showing sidebar

Hi guys, so my side bar is not showing up in IE8. It works fine in chrome, firefox etc. I have the read previous posts and saw alot of people saying microsoft word tags will appear. i checked and can not see any that were mentioned. the website is
https://airgun-academy.pyramydair.com/blog/

any help on this would be great. Thank you in advance for looking into it