For anyone who might see this error: “ERROR for site owner: Invalid site key”, with the Advanced Google reCAPTCHA plugin on WordPress, it helped me to double check to see if I had reCAPTCHA v3 activated in multiple places (example: Contact Form 7, WP Forms, Elementor, etc.).
I had reCAPTCHA v3 activated in Contact Form 7 and the Advanced Google reCAPTCHA plugin, and had to update the Keys in both plugins. The error was removed after that.
I have encountered the same issue. When I visit the WordPress wp-admin page, it automatically points the Paid Memberships Pro front-end login page that I set up.
Is there a way to keep the PMPRO log-in from overriding the WP-Admin login page?
An example of how the redirect is written in the URL bar:
websiteaddress.com/?redirect_to=http%3A%2F%2Fwebsiteaddress.com%2Fwp-admin%2F
