Please check now.
This plugin also support in Contact Form 7. Please see instruction in https://www.shamimsplugins.com/docs/advanced-nocaptcha-recaptcha/getting-started-advanced-nocaptcha-recaptcha/implement-in-contact-form-7/
Both plugin uses same captcha in same page which made conflict. I have disabled CF7 captcha and added this plugin captcha in CF7. Now working. I have only edited CF7 form id 11. If you need for other forms you can follow above link.