WordPress update! Now everything is crazy

I upgraded WordPress and now things have gone haywire. Specifically when I go to manage a property now, the whole page looks completely different. Tagline and short description fields have disappeared. Can no longer add details like prices, bedrooms, etc. Can no longer add images. It is like the box is squished. Cannot publish. A disaster. I backed up with my webhost before the download but before I look into restoring I thought I’d see if anyone has any advice.