Error messages not translatet

Hello,
i have the problem that all Error messages are not or not full translated.
I worked on the lang file – but this does not help.

you can see here – http://rentme2.nh1.de/cabrio-sportwagen/phasellus-fringilla/
Just enter nothing in the form an press registration button!

What can i do?

I am running on Version: 3.3.1Last update: 20.08.2013written by Feryaz Beer

regards
Wilhelm

Everything expect the name and email field is translated.Try to open the .po file with a normal editor, search for the both strings and look if they’re marked with #fuzzy.
Regards