UBB.Developers Forums UBB.threads 6 Bug Reports Problem with language files

This is not a bug in the original software but in my own translation. I didn't know where else to put it.

I have spend a lot of time to translate threads 6.0 to Dutch and something went wrong in one (or 2) of my language files.
When I edit a post or try to delete a PM I get a white screen error.
I checked my language files but can't find the problem.
It MUST be the language files though since everything works fine when I use the german files.

Can someone please help?

Thanks,

Ron