"HTTP 500 - Internal Server Error" is not a particularly informative
error message. In general, this error indicates a bug in the code.
Internet Explorer has a feature that blocks the true error message from
being displayed. In order to display the true error message, follow the
instructions below:
- Open Internet Explorer
- Go to "Tools" --> "Internet Options"
- Go to "Advanced" tab
- Uncheck "Show Friendly Error Message"
- Click "OK"
- Reload the page, you should now see a more detailed error message.