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  • Having this exact same issue, did you discover what it could be? I have the site on a staging environment and there is no issue, on my live server the checkout is broken. Odd

    Thread Starter melmmm

    (@mumme1msncom)

    I really do not remember, I can barely remember what I had for breakfast! What I would advise you do is log into your MailChimp account, and get a fresh copy of the API key, paste that in the pmpro-chimp plugin and cross your fingers ??

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  • The topic ‘FATAL ERROR issue causes checkout to break’ is closed to new replies.