A while ago I customized a blog (www.koreanish.com) but then the WordPress installation was accidentally updated and it interacted badly with the customized code. Eventually, the person who ran the blog found a theme that displayed decently with the new version of WordPress + the custom code. Fast forward a couple years, he wants to switch themes again but the widgets are displaying poorly no matter what theme he chooses. It's been a while since I've worked with WordPress. Can anyone advise me on how I might be able to get things to display correctly?
The blog I need help with is koreanish.com.