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   IpRestrictionModule
Notification   BeginRequest
Handler   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x800700b7
Config Error   Cannot add duplicate collection entry of type 'add' with combined key attributes 'ipAddress, subnetMask, domainName' respectively set to '114.119.140.56, 255.255.255.0, '
Config File   \\?\h:\root\home\ncwebservices-002\www\discountdeals\Catalog\web.config
Requested URL   http://www.discountfurnituredeals.com:80/Catalog/claire-chair
Physical Path   h:\root\home\ncwebservices-002\www\discountdeals\Catalog\claire-chair
Logon Method   Not yet determined
Logon User   Not yet determined

Config Source:

  108:             <ipSecurity allowUnlisted="true" denyAction="AbortRequest">
  109:                 <add ipAddress="114.119.140.56" subnetMask="255.255.255.0" allowed="false" />
  110:                 <add ipAddress="114.119.147.42" subnetMask="255.255.0.0" allowed="false" />

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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