Duplicated Header in Mobile View

Hello.

Please assist. I am developing a standard website for the company I work for, and for some reason, when viewing the website from your phone’s internet, the mobile view shows the company logo and menu twice, practically overlapping. I have combed through forums, videos, you name it, and cannot figure out how to remove the duplicated image and menu. I’m desperate to find a solution! When viewing the website from a desktop browser, the home page is perfect. No duplication. It’s only when viewing our website from a mobile web browser. Thank you in advance!!

The page I need help with: [log in to see the link]