The browser produces an error after I have published my ASP.NET C# program that is not produced in my local host in debug mode.

I get this error often and it seems to be a generic error. By this, i mean that if I do what the error suggests and change the configuration file by setting the customErrors to "off", I still get this error. The frusturating thnig is that this error does not happen in local host when running in debug mode. Is there any way to modify the configuration file so that the error message is more descriptive?

I saw this error occur when I was running a Microsoft Outlook web page. Could it be a serious problem with Microsoft?