IIS - 500.19 오류 (0x80070021)

신규 테스트 서버를 구성하는데, 웹 사이트가 다음과 같은 오류 화면이 뜨면서 동작하질 않습니다.

HTTP Error 500.19 - Internal Server Error

The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information:

Module
   IIS Web Core 

Notification
   BeginRequest 

Handler
   Not yet determined 

Error Code
   0x80070021 

Config Error
   This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".  

Config File
   \\?\D:\WebSiteTest4\web.config 

Requested URL
   http://localhost:8010/ 

Physical Path
   D:\WebSiteTest4 

Logon Method
   Not yet determined 

Logon User
   Not yet determined 

Config Source:
   88:     <system.webServer>
   89:         <modules runAllManagedModulesForAllRequests="true">
   90:             <add name="DomainServiceModule" preCondition="managedHandler"

More Information:
This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. 

IIS - ISAPI 필터 제작하는 방법
; https://www.sysnet.pe.kr/2/0/1549

IIS - 500.19 오류 (0x8007000d)
; https://www.sysnet.pe.kr/2/0/976

IIS - this configuration section cannot be used at this path (configuration locking?)
; http://stackoverflow.com/questions/9794985/iis-this-configuration-section-cannot-be-used-at-this-path-configuration-lock