The update should not cause any problems. Have you cleared all cache?
I would recommend you to activate Header builder via Theme options and create the desired header for desktop and mobile from scratch (current headers layouts and settings will be deprecated in 3 months). Here you can find video tutorials – https://www.youtube.com/watch?v=RbdKjQrFnO4&list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG
Go to Appearance > Widgets > and set correct content for the Footer widget area.
