Thanks for reaching out to us.
Please check the screenshot at https://www.dropbox.com/s/b9lk3iqx10wxecn/Screenshot%202022-11-17%20at%208.15.13%20PM.png?dl=0.
The form on your website created using our plugin is working. Since you have enabled “Double Opt-in”, the user will get an email from “MailChimp.com” with a link that one needs to click to verify. After this step, the email address will be added to your Mailchimp List/Audience.
I tested using my own email “me@harish…com” which should be on your list.