I think that the template is perhaps the problem.
I already had some template that not used the VM code and simply had no translation key for some code.
You need to check if your template have a norwegian translation, else you need to copy english to norwegian and translate missing file.
And in the badest case, perhaps this use no key at all ?
Check with the template maker, i think he certainly have the answer, it's hard to know, without inspecting the code, if this is a translation problem or a missing language key.