Hello,
Our website contact form shows the following error:

'ERROR for site owner: Invalid site key'

We have setup Captcha up with Google recapthca.  Google gave us a site key and a secret key.

We configured Nop with the following details

reCAPTCHA version - Set to version 2
reCAPTCHA public key - entered Google site key
reCAPTCHA private key - entered Google secret key

Hope someone can help.

Many Thanks