Zend certified PHP/Magento developer

Ebizmart Mailchimp Interest Group Issue

I’m using Magento2 and I installed the module Ebizmarts_MailChimp in my local and setup using the MailChimp account.

Everything is working fine except that when I add a group interest on an account that can be updated on the My Account -> Newsletter, it saves on the magento side but doesn’t sync on the MailChimp side.

May anyone help me?