Hi everyone,
support instructed me to put in https://na-sj##.marketodesigner.com into my Allow settings on google chrome for insecure content and now I am not getting the errors.
replace the ## signs in the link with the number that was in the URL links for Marketo before they changed to include engage. You would also replace SJ if your server is not San Jose.
IN chrome settings go to privacy & Security>site settings>additional content settings>Insecure content.
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