API keys for reCAPTCHA v3 are different from those for v2; keys for v2 don&#8217;t work with the v3 API. You need to register your sites again to get new keys for v3. For details, see {bbackup_94402fb9ba80f392e0976ece85f92b2b876bfcaed8d83250cc06083f7139c7d9}s.