Website is inaccessible wit the following error:
HTTP Error 500.0 - Internal Server Error
There is a problem with the resource you are looking for, so it cannot be displayed.
Detailed Error Information:
Module IIS Web Core
Handler Not yet determined
Error Code 0x80070002
Requested URL http://www.example.com:80/
Logon Method Not yet determined
Logon User Not yet determined
This error means that there was a problem while processing the request. The request was received by the Web server, but during processing a fatal error occurred, causing the 500 error.
Failed Request tracing is enabled in IIS Manager, but IIS does not create Failed Request tracing logs.
IIS application pool "example.com(domain)(4.0)(pool)" is assigned to site example.com.
When pool "example.com(domain)(4.0)(pool)" is stopped, the site shows "500 HTTP Error".
When pool "example.com(domain)(2.0)(pool)" is stopped, the site shows "503 HTTP Error" instead of "500 HTTP Error".
Cause is unclear.
Install latest Windows Updates and reboot the server.
If this does not resolve the issue please contact Microsoft Support.