Same problem here during registration form.
If an error occur during registration (i.e. mail already exists) reCaptcha in not valid anymore.
I tried reCaptcha v2 or v3 but I receive the same error:
“Error on google reCaptcha. Contact your site administrator.”
I have the latest version of the free plan (Version 1.9.8)
Should have been resolved here too or not yet?
Thanks,
Daniele