It is working here.
Are you getting any error?

You can network activate this plugin OR activate in sub-sites where you want to show captcha.
You can change settings (site key, secret key etc) for all sites where you want to show. Or you can add following code in your theme’s functions.php then change settings in main site. It will reflect in all sites
add_filter( 'anr_same_settings_for_all_sites', '__return_true' );

Thank you for letting me know.
I can reproduce this. Also already solved. Can you copy code from git commit? If yes please use https://github.com/shamim2883/advanced-nocaptcha-recaptcha/commit/5bccf7a4eba7d48078fe176437f4b7c1d90f1af6

otherwise next version you will get it fixed.