Updating dutch wiki

Hi all, I'm not sure if this is th right venue to ask my question. I trust you'll put me in the right direction if needed :-). I'm trying to edit some pages on nl.o.o . however some seem to be locked and have rather outdated information and links. To whom should I turn to get this resolved? I sent an email to the most likely person, who edited the page some six years ago. However I did not get a reply. Any help to get this sorted would be much appreciated. Kind regards, Natasha