White Screen of Death with CoursePress Plugin

Hi,

I'm running a multisite. I have CoursePress Pro activated on a subsite along with the Marketpress Lite plugin. I have the site setup nicely, but when I logout, it goes to a white screen. Even I am logged out and on my main site and click to go to the coursepress site, it still shows a white screen.

Not sure what is going on??

Thanks,
Scott