I setup Google reCAPTCH v3 in my wpForo.

after that i tested without logout from other browser if its works fine or not. only after making sure i logged out.

but next day i was getting ERROR for site owner: Invalid site key

even everything was set it right and tested.

it was not allowed admin to login so there was no option to fix it than phpmysql backend.

If you want to know the site key, as you are not allowed to login to your wpForo, you can find it from Google reCAPTCHA admin Panel or from source of the login page by searching sitekey

WEBSITE SOURCE  WILL LOOK LIKE THIS

rc_widgets[i], { ‘sitekey’: ’69LcrKR0cAXAXACgFZ9JciIXl7ny-O9_glmZMdPSb’, ‘theme’: ‘light’ }

Copy the site key – 69LcrKR0cAXAXACgFZ9JciIXl7ny-O9_glmZMdPSb

login to webhost.

go to PHP My Admin

search for the sitekey 69LcrKR0cAXAXACgFZ9JciIXl7ny-O9_glmZMdPSb

you will find one entry in  match in wp_options table

export wp_option or EXPORT just row before editing anything.

once backup is taken goto the row and browse to the sitekey 69LcrKR0cAXAXACgFZ9JciIXl7ny-O9_glmZMdPSb

JUST DELETE THE SITEKEY. save the row

you have done it.

NOW YOU CAN LOGIN.