Mailchimp integration is not working

Hi.
Yesterday I was able to establish a connection with mailchimp through the Key API.
But today it does not work anymore.
What should I do to make it work?

We are sorry for the inconvenience this may have caused.

Can you please try to re-integrate your Mailchimp with your form?

https://www.jotform.com/help/163-How-to-Integrate-with-MailChimp

Please give it a try and let us know if the issue still remains.