Webflow <> MailChimp Integration not working

Hi folks,

I followed the Webflow <> MailChimp integration guide (MailChimp action form link added to Webflow, form set to POST, names of fields matching), but I’m not able to get the form to work. When I submit an email, I get an error state.

I tested it on a separate website first (not our production site).

Anyone faced this issue? Any help would be much appreciated!

Here’s the share only link: Webflow - Looppanel

Any this is the non-production website: Home [updating forms to mailchimp]