We have checked it.
First, you have to download the latest version of our theme, and update the files.
Then, you have to create two menus; one of them for the one page site, and the other for the remaining pages of website.
After that, edit the one page site, and you will find a box called “(Circleflip) MultiMenu”, choose from it which is the primary menu for this page, and which is header menu for other pages of website.
If you face any problem doing these steps, don’t hesitate to ask.