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   ProtocolSupportModule
Notification   SendResponse
Handler   System.Web.Mvc.MvcHandler
Error Code   0x800700b7
Config Error   Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'X-XSS-Protection'
Config File   \\?\C:\Inetpub\vhosts\covid19sikkim.org\httpdocs\web.config
Requested URL   https://covid19sikkim.org:443/
Physical Path   C:\Inetpub\vhosts\covid19sikkim.org\httpdocs
Logon Method   Anonymous
Logon User   Anonymous

Config Source:

   79:         <add name="X-Content-Type-Options" value="nosniff" />
   80:         <add name="X-XSS-Protection" value="1; mode=block" />
   81:         <add name="X-Frame-Options" value="sameorigin" />

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.

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