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Server Error in '/' Application. 
   
  Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. 
   
  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  
   
  Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. 
   
  Source Error:  
   
   
  [No relevant source lines] 
   
  Source File: c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\52ded2a7\679b1941\App_Web_qwea0txm.30.cs    Line: 0  
   
  Stack Trace:  
   
   
  [ViewStateException: Invalid viewstate.  
  	Client IP: 78.185.xx.xxx 
  	Port: 26044 
  	Referer:http://www.bolumsonucanavari.com/Haberler-Far_Cry_3te_Ozel_Sunucular_Olmayacak-32643.htm 
  	Path: /Default.aspx 
  	User-Agent: Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11 
  	ViewState: 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...] 
   
  [HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.] 
     System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState) +12436256 
     System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose) +12327715 
     System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose) +67 
     System.Web.UI.HiddenFieldPageStatePersister.Load() +12327927 
     System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +12580515 
     System.Web.UI.Page.LoadAllState() +51 
     System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +12573463 
     System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +12572973 
     System.Web.UI.Page.ProcessRequest() +119 
     System.Web.UI.Page.ProcessRequest(HttpContext context) +99 
     ASP.default_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\52ded2a7\679b1941\App_Web_qwea0txm.30.cs:0 
     System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +913 
     System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +165 
   
  Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929