I had the same error. I fixed it by:
1. logging into Google reacptcha
2. going to settings.
3. in the Domains field, I had written in:
https://www.idsdispatch.com
so I added a second domain into my “domians” like this
https://www.idsdispatch.com
I then clicked save at the bottom of the page.
Now it works.
I hope that helps everyone.
Google needs to mask the “domains” field to ensure people enter it in correctly.