MailChimp form not working

So it's all looking good on my sign-up form using Hustle BUT when I fill it in and get an acknowledgement then go to MailChimp, nothing has been added. Could you please look at this and see what's going wrong? I will open support access. Thanks. Also, once that's done, I'm going to want to put SIGN UP NOW buttons on other pages and link to the form page. Can you please tell me the best (easiest, most attractive) way to do that? Thanks!