Email Submission Not Working – “Something Went Wrong Error”

Hi There!

First, thanks for this awesome plugin! I’m super impressed by it’s functionality.

Unfortunately, after created a pop up sign up form for my site, when users attempt to sign up they receive the “Something Went Wrong error.” We have integrated MailChimp, and were able to successfully attach a list during the pop up set up.

Before submitting this topic I have tried the following:
1. Updating my Mailchimp API
2. Deactivating other plugins

Sadly we are still receiving the same error. Can you assist me with this?

Thanks in advance for your help!

-Adrienne

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