ReCaptcha Breaking Pro-forms

I tried inserting a Pro-form for free sign-up using the Stripe Pro-Forms “Free Registration Forms” shortcode. When I tested it, it did not work. The Captcha was broken with the error message “reCAPTCHA V1 IS SHUTDOWN” (all caps in original, see below). How can a basic feature of S2Member Pro be broken?! Is there a fix out there I’m missing?

Is there a way to create a manual free sign up form that I can insert into posts? I don’t even use Stripe, so it doesn’t have to be based on Stripe (in fact it’s better if it is not).

Thank you for your help!

Here is what my form looked like:

This might be a bit late but here’s the solution to the above:

This will update your forms to use google’s reCAPTCHA v2 because you will have generated new secret keys + avoid the default keys that come with s2member.

So, create the keys via a google account, then go to “Dashboard → s2Member (Pro) → General Options → CAPTCHA Anti-Spam Security and fill the new keys into the reCAPTCHA™ Public Key and reCAPTCHA™ Private Key fields. Then click the Save All Changes button at the bottom”