Gamezone Menu doesnt work

Hello

I use the GameZone Menu and I am really happy with the design.

But I have a big problem. I can't change anything in the GameZone menu!?

If I click in the left wordpress sidebar on Generel, slider, layout and so on, I come to the menu, but I can't make changes.
And if I click directly to a button in Gamezone menu, then nothing happen.

Is it maybe a problem with the new Wordpress 3.8 version?

Thanks for your help in advance

the problem is solved

Wordpress Corner Peel Plugin was responsible.