The type initializer for ‘Cognos.Controller.Configuration.CRN’ threw an exception.

Cognos Controller 10.3
Microsoft Windows 2008 R2 server

After installation of Cognos Controller you get an error message when you start Cognos Controller Configuration

Error message in Controller:
Web Service, ControllerProxyServer, could not be found. Section is disabled.
The type initializer for ‘Cognos.Controller.Configuration.CRN’ threw an exception.

The IIS installation is damage.

Check by start the IIS manager and expand the Application pool or the site list. You will get error like below:
There was an error while performing this operation
Line number: 13
Error: The configuration section “system.web” cannot be read because it is missing a section declaration.
Configuration system failed to initialize.

Possible Solution:
Uninstall IIS from windows and reinstall it from add/remove roles.