Hi, in your console is a bug:
Invalid site key or not loaded in api.js ?
if so then you need to add a link to the api.js in your <head>
Probably your site loaded api for recaptcha v2
Code:
<script src="https://www.google.com/recaptcha/api.js?render=reCAPTCHA_site_key"></script>
more: https://developers.google.com/recaptcha/docs/v3
