Hi there Felix,

This is a known issue that I’m hoping to fix soon!

Here’s the actual description I’ve got in our issue tracker:

“Having “e-mail” in the form results in this error. This is because the fuzzy-extract for “email” doesn’t match on it.”

Are you explicitly mapping your email field to the EMAIL merge var in MailChimp?

I have the same problem and the solution of Aaron works for me.

BUT: In German “email” is written correctly “E-Mail”. Everything else is wrong.

I try to deliver professional services and I try to write correctly. That’s why it’s not a very big issue for me but a splash on my site.