QUESTION Multi Language Navigation gets confused

[GetSimple-Novice]

Dear All,

I try to set up a multi language website
I was starting with german now I try to provide the english content.
It is just for pages of content.
DE there is Home, Beschreibung, Lage, Reservierung
EN there is Home, Description so far
I use Theme GSkeleton, I18N Base and I18N.

The problem:
In the navigation I see Home, Home, Description, Beschreibung, Lage, Reservierung
No matter what language I set in the Browser.

http://www.apartment-aulissen.at/

Please explain the solution to me.

Best Regards

Werner