If wwwroot folder corresponds to the actual root of your web site then that is where you should put the files because otherwise your site is running at yourdomain/mojoportal instead of just yourdomain

But if you move the files to the root, then you need to delete the mojoportal folder to prevent conflicts and errors.

Hope that helps,

Joe

That is a generic error code, you need to find out the error detail, see basic troubleshooting, the error detail might be logged in /Data/currentlog.config or you might need to ask your host to find out the error detail.

Make sure your root site is configured for .NET 4.

Hope that helps,

Joe