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Your site under maintenance mode, so I can’t check it. Please provide temporary wp-admin access. Use this area – http://prntscr.com/n3het9 to post private data.
Also, watch our video and read documentation about the styling of Mail Chimp form – https://youtu.be/Q00y7QCcdqg https://xstore.helpscoutdocs.com/article/91-mail-chimp-form-custom-styles
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