myarcadeplugin games not playable returning errors

I have installed myarcadepluign and had it working well in my demo mode and the games work in the dashboard ,i have now made the site it is on open and have got games with thumbnails published on the site but when a thumbnail is clicked it goes to a error page stating this

The website encountered an error while retrieving https://zodcade.zedordead.co.uk/2013/09/21/revolver/. It may be down for maintenance or configured incorrectly.
Error code: 500

i have it running on a multi site version of wordpress that was working fine and i have not changed the theme that it was working on previously ,i have deleted all games then re-fed it with more games but still returns the error what do i need to do to change it back?
i am guessing i have a switch not clicked but cannot find it

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