Hi,
I have to set up a guestbook for a client. Website is in German, however I use the English version of concrete, as I am so used to it.

Is there a way to replace the English text in the CAPTCHA with German text?

There's this line: Please type the letters and numbers shown in the image.

and this line: Click the image to see another captcha.

I searched around but couldn't find the file where this text is set up.

Any help will be much appreciated, thxs!