Meet this error on your website when you access it not from its own web server..?

Internal Server Error message

But if you access the same http address on your local web server the screen above won’t display. Here is the solution:

1. Go to IIS Manager.

2. Expand Sites then click your website name.

3. Look at the right screen of your chosen website,  in a Management category double click Configuration Editor and change the value as shown below:

Change blue-highlighted parameter's value into Detailed

4. Click Apply then refresh your url, voila!

Detailed error messages