Checkout page after adding another language.

So after i've installed and added the Dutch language pack, my checkout page is not working properly anymore.
I get the error when i go to checkout page:

0 - Call to a member function getValue() on null.

I still see the tabs of the different steps of checkout but all of them are closed. And thus i can't proceed checking out.
Has this happend to anyone before or does someone have an idea on what breaks it?

Thanks in advance.

Hello,

Please go to EShop -> System -> Tools, then click on Synchronize Data tool to synchronize data between languages, then test again.

Sincerely, Giang

Works like a charm, Thank you very much!

OK no problem at all!