• I want to integrate this plugin with PMPro, but when i enter my API key, i get this following error.

    Sorry, but MailChimp was unable to verify your API key. MailChimp gave this response:

    API call to helper/ping failed: Problem with the SSL CA cert (path? access rights?)
    Please try entering your API key again.

    https://ww.wp.xz.cn/plugins/pmpro-mailchimp/

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