hCaptcha giving similar error as ReCaptcha before

Dear admin,

About six months ago I switched from Breezing to your form solutions with good succes. We had some issues with the ReCaptcha code ( see this post ) but that worked in the end. However the amount of spam coming from the website (and with that from the forms used) is still significant, so I wanted to increase the security on it. I now have email verification swithced on and I wanted to start using the hCaptcha module. However the same issue is introduced where the captcha code is not valid. See this test form .