Can you make changes from git commit? If yes please use https://github.com/shamim2883/advanced-nocaptcha-recaptcha/commit/f53057c3753b3bc9d8e18d6b94c3931b5a45399e
Otherwise use FTP or File manager and go to your website wp-content/plugins/advanced-nocaptcha-and-invisible-captcha-pro/ and replace anr-captcha-class.php with https://github.com/shamim2883/advanced-nocaptcha-recaptcha/blob/master/anr-captcha-class.php
Then test and let me know.