Website is not looking right after Smushing

I signed up for SmushIt Pro and ran it on my site. After compressing hundreds of images my site is not looking correct. The main menu and the mobile navigation menu now show all the time. When the site is viewed on desktop, the mobile drop down navigation also shows. When I view on mobile, the full navigation bar shows as well, and affects the responsive nature of the site. We tried restoring to before SmushIt and it didn't work.