I am getting DNN Error while deleting the module in the page, I have checked the Eventlog table where it is showing Page Load Exception, as well as I got a log as shown below,
See http://go.microsoft.com/fwlink/?LinkID=314055 for more information. ---> System.Web.UI.ViewStateException: Invalid viewstate.
Client IP: 127.0.0.1
Port: 51539
Referer: http://dnndev.me/Profile-Description
Path: /Default.aspx
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.81 Safari/537.36
ViewState: 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...
at System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState)
at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
at System.Web.UI.HiddenFieldPageStatePersister.Load()
at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
at System.Web.UI.Page.LoadAllState()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2015-06-09 09:49:23,390 [Thread:31][ERROR] DotNetNuke.Services.Exceptions.Exceptions - DotNetNuke.Services.Exceptions.PageLoadException: 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.