Orchestrator generic http error after trying to modify IIS Website Authorization rules

Scenario: Remove the All users in the IIS Website Authorization rules and replace with Specific domain users or local Groups in IIS server

Steps to reproduce: Removing and re-adding All users in the web

Current Behavior: with GenericError.html?aspxerrorpath=/

Expected Behavior: Access the Orchestrator successfully

Studio/Robot/Orchestrator Version: Orchestrator 2017.1

Last stable behavior: current version
Last stable version: 2017.1
OS Version: Windows 2012 R2
Others if Relevant: (workflow, logs, .net version, service pack, etc): Fails even if you put back the All users