Email field is ‘invalid’ even when correctly filled out

On our website, we have a sticky button at the bottom of the page that triggers a pop up modal with a form. The form is built with Contact Form 7 and we use the Chimpmatic extension to connect to our MailChimp account.

The pop up modal form only has two fields, one for the user’s name and one for their email. The form will not submit even when all (both) fields are filled out. The error message pops up and says “One or more fields have an error. Please check and try again.” Using the dev tools in google chrome, I can see the feedback that the form is giving:

contact_form_id
: 
6505
into
: 
"#wpcf7-f6505-o2"
invalid_fields
: 
[{field: "your-email", message: "", idref: null, error_id: "wpcf7-f6505-o2-ve-your-email"}]
message
: 
"One or more fields have an error. Please check and try again."
posted_data_hash
: 
""
status
: 
"validation_failed"

The email input is not empty, but this is what I keep seeing. Other than the Chimpmatic extension, I can’t think of anything that would be causing this, and I have the footer form also connected to MailChimp and that form is submitting just fine. Anyone else run into this issue? I honestly don’t even know where to start looking for issues.

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