It doesn’t look like the Recaptcha plugin widget has been updated to run on newer versions of Mendix. It may be worth reaching out to the developer (Objectivity) to see if they can update it. The code is also on GitHub if you wanted to attempt this yourself and submit a fix back to them.
GitHub - ObjectivityLtd/Mendix.RecaptchaWidget
Good luck!
Hi Sandra,
if you can’t use the Recaptcha plugin, a possible solution could be Multi-factor authentication.
I never used this widget but seems good.
Let me know if it works :)
Andrea