Wrong startpage on mobile view

Hi guys,
I´ve a problem with Weta. If you open my page for the first time on a mobile device you can see this:

But it should look like this (You have to scroll down and click: View full site):

I don´t know what´s the problem. I´ve de- and reactivated all installed plugins but there´s still the same problem.
I use a static (multilingual) startpage and it works fine on tablets and computers.

Website: http://www.lovefoodasia.com/

I hope you can help me with this one.