Plugin stopped working suddenly

Hi,

We did write in your support forum a couplke weeks ago and no response… 🙁

Last 5 November plugin stopped working in all our sites with no change made. Not just stopped working, mails where not send because of the conflict and stays in contact form 7 preload. As I told you in your forum, it could be some API changes comming from Mailchimp (Changes about double optin for example)

Is tehre any reason why this is happenning, is there any new version comming soon that could solve the problem?.

Thanks!!!

The page I need help with: [log in to see the link]