You have to enter your own reCAPTCHA keys in order to use the reCAPTCHA feature, here is how. 1) Login to your Google account at https://www.google.com  2) Go here: https://www.google.com/recaptcha/admin  3) Scroll down to the "Register a new site" section. 4) In the label, enter your site name. 5) Check "reCAPTCHA v2" OR "Invisible reCAPTCHA" depending on which reCAPTCHA version you want to use. 6) In the domains field, enter your domain(s). 7) Check the checkbox to agree to the terms. 8) Click on "Register". You will now see the "Site key" and "Secret key" which you will need to copy into WebARX plugin.