Server Error in '/' Application.
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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:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ViewStateException: Invalid viewstate.
Client IP: 78.180.236.16
Port: 10429
Referer: http://www.istanbuloyun.com/logingame.aspx
Path: /logingame.aspx
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; GTB6.6; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E)
ViewState: /wEPDwULLTE4Mzk0NzUxNTEPZBYCAgEPZBYEZg8PZBYEHgdvbkZvY3VzBSNUeHRGb2N1cyh0aGlzLCdDZXAgTm8gdmV5YSBFbWFpbCcpOx4Gb25CbHVyBSJUeHRCbHVyKHRoaXMsJ0NlcCBObyB2ZXlhIEVtYWlsJyk7ZAIBDw9kFgYfAAUYVHh0Rm9jdXModGhpcywnxZ5pZnJlJyk7HwEFF1R4dEJsdXIodGhpcywnxZ5pZnJlJyk7HgV2YWx1ZQUGxZ5pZnJlZGSM7dOktHA6YxwHgEIyVx88YNAlgl0EET2Y74XMkrbRZA==]
[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) +11197460
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +11197905
System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +60
System.Web.UI.HiddenFieldPageStatePersister.Load() +11198183
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +11275831
System.Web.UI.Page.LoadAllState() +52
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11270399
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11269918
System.Web.UI.Page.ProcessRequest() +119
System.Web.UI.Page.ProcessRequest(HttpContext context) +167
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +597
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +266
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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
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