error 400, mailchimp, form

Hi,

I have a news-mail-subscription-form on my site.

After submit (with a proper e-mail), i will get this message.

“n error occurred.
MailChimp HTTP 400 – The resource submitted could not be validated. For field-specific details, see the ‘errors’ array.
This Message is not visible for site visitors.”

I do just understand a basic of html. Where in the WP or Elementor dashboard should i look for try on solutions?

Thank you!

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