Hello,

01. Go to Theme Settings > Shop > Free Shipping bar > disable the option free shipping bar:
Screenshot for clarification:
https://ibb.co/YT7hFp7

02. Now it is showing fine on your site. Check back your site after completely clearing the browser cache.
Screenshot for clarification:
https://ibb.co/nMd0ZgZ

03. If side sticky navigation is enabled, the whole site will have a side indent equal to the width of the sticky navigation. By default, this indent is added to “body” tag, but the “promotion” page has custom CSS code (video https://gyazo.com/0f3d37de21481638b2763f3aee605e54) that overwrites this indent making site content fall under sticky navigation

04. Go to Theme Settings > Single Product > elements > disable the option product navigation:
Screenshot for clarification:
https://ibb.co/vmhbJbG

07. Go to Appearance > Menu > edit the mobile categories mega electronics menu and add the menu that you want.

Best Regards.