I solved one issue with convert plus but now I need some help resolving this error “There was an issue with your request. Administrator has been notified already!” I’ve checked Mailchimp and Convert Plus configuration multiple times and I don’t see an issue. Double optin is turned off, field names match, etc. I have the free version of Mailchimp.
Below is a screen shot of Convert Plus modal popup convert plus config and Mailchimp config.