Solved Can't post new topics, has to do with captcha

joomla, default captcha: invisible recaptcha

kunena: display captcha for: Nobody

(if I change to another option the result does not change)

on the frontend, if I want to create a new topic, the submit button does not work. Underneath the message field I see a button called Attachments and a subscribe tick box.

If I click the attachments button, I get a "Add Files" button but as well now I see underneath "Spam Check: 10 minus 3 equals" and a field to fill it out. If I do that, now the submit button does actually work.

Anyone an idea how I get this to work? Thanks a lot!

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That was it, that plugin. I didn't remember it to be a special plugin. Thanks a lot!!!