Dear Carlos,
Please find the updated version of the nl_NL translation for Skt NURCaptcha 3.1.0 using this link:
http://www.mediafire.com/?ulqjvoaf2vh2c
Kind regards!
Salvi
Omg I completely forgot to reply to your answer. I’m currently not working on my site so I can’t follow up on the issue with the log files (if it still exists).
Translation credits are fine as they are, thank you! If you need an update on the language file, let me know.