Paypal button not showing in Pro sites

Paypal button dont work in but domains on domain mapping. See screenshot.

Its norwegian site.

I inspecet element in Chrome and see source: http://www.paypalobjects.com/nb_NO/i/btn/btn_buynow_LG.gif

It should be http://www.paypalobjects.com/no_NO/i/btn/btn_buynow_LG.gif

But how do i change that and get button working.