error on product page with marketpress

I am setting up a site/store for a client.
I cloned my working site to her site and am now getting an error message on the "product" page here:

While setting up my store, I also had the error but somehow fixed it.

I can't find what it causing the error on her site though. I have reinstalled the marketpress plugin to her site, but with no change.

The theme is flexmarket. Their support forum said to ask you for help.

I do have a paid account for marketpress.

  • Timothy Bowers
    • Chief Pigeon

    Hey there.

    When headers are already sent it basically means some content is being sent before the session_start.

    Did Nathan from MarketPress Themes not share what he thought the issue to be from his forums?

    I guess you tested this in the default theme and it persisted there too?

    What's different between the install that works and the one that doesn't?

    Take care.

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