How do I get around the following issue with Mailchimp integration. The email field in Mailchimp is required and I can't change this. "This list has required merge fields. Please update the list settings in Mailchimp and try again."

I am getting the following error. I am trying to correct but I just can't as my lists in mailchimp require the email. Can anyone help?

You may see the following error when saving your Mailchimp settings:

"This list has required merge fields. Please update the list settings in Mailchimp and try again."

This means your Mailchimp list has one or more required merge fields which cannot be captured by the Mailchimp Subscribe app. To use this list, update the list settings in Mailchimp, so there are no required fields.