Hello,
Always do the backup of files and DB before theme and plugins update or use staging site to test update and then if everything is ok update production site.
Unfortunately, I don’t remember your site very well before the update, so don’t understand what styles were changed. Could you, please, explain in more detail? At this moment I see just messed widgets only. So, go to Appearance > Widgets > check the prefooter, footer and copyrights widgets and move them to correct areas.
Regards