Said I was a bot.

I installed the plugin and entered the Site Key and Secret Key and saved the changes. When I tried to log back in to the site, the site said I was a bot. After 10 attempts, I used FTP to delete the plugin files and go back to a normal login.

I don’t have time to day to try to debug this, but I thought I should register the situation I encountered, because you must be prepared to manually delete the plugin if (for example) you make a mistake in entering the key information, as the WordPress administration pages will not be available due to the failed login.

https://wordpress.org/plugins/googles-no-captcha-recaptcha/