reCAPTCHA unable to set/verify key and secret

Hi there,

I am having troubles setting the reCAPTCHA key and secret. Upon entering and clicking on verify it shows the spinner, but never verifies or saves the input.

In another thread I saw that you suggested to check the network info in the browser inspection tools:

I can post the request headers as well, if you tell me, which one would be of interest.

When trying to use the reCAPTCHA in a form and submitting it, it states the following error “Failed to submit the form. Try again later, please.
No secret provided”.

Hope you can help.

Best
Kim