Error setting metadata fields, language problem?

Hi,

I've a sharepoint list, this list is from type Contact-List. Now i've created a K2-Workflow which should update the column 'Address'.

But there is a problem, k2 did not find the column:

Server was unable to process request. ---> Error setting metadata fields - Fields do not match.Das Feld mit dem Namen "Address" wurde nicht gefunden.

Is there a language problem? in german the column is called Adresse?

Thanks