Lightswitch 2013应用程序将在服务器上运行，而不是在Web上

I just upgraded a Lightswitch application that is called from an ASP.NET website. I can run the application from the "browse on port 80" option in IIS 7.5. on the server (2008 R2). But when I try to run it externally, I get the following error:I just upgraded a Lightswitch application that