how do I change the recaptcha error message "The response parameter is missing" that shows if the box is not checked? doesn't seem to work in the form controls.
Check out this SO post. I believe this might be what you're looking for.
A possible solution for this issue could also be adding a javascript block after your field - for example:
<script type="text/javascript"> $(function() { $("#ctl01_ContactForm_viewBiz_Captcha_lbe").html("Please tick the box above"); }); </script>
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