The SharePoint server 2013 was working well inside windows sever 2008 r2, but suddenly I start getting the following error when trying to access the sharepoint administration UI:-
Service Unavailable
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HTTP Error 503. The service is unavailable.
And when I run the SharePoint 2013 product configuration wizard I will get the following exception:-
9/09/2013 13:29:09 1 INF Not running in high contrast, so we will paint the background with our trademarked image 09/09/2013 13:29:18 11 ERR Task upgradebootstrap has failed with an unknown exception 09/09/2013 13:29:18 11 ERR
Exception: Microsoft.SharePoint.Upgrade.SPUpgradeException: Exception of type 'Microsoft.SharePoint.Upgrade.SPUpgradeException' was thrown. at Microsoft.SharePoint.Upgrade.SPManager.BootStrap(Guid sessionId, SPUpgradeOperationFlags flags) at Microsoft.SharePoint.PostSetupConfiguration.UpgradeBootstrapTask.Run() at Microsoft.SharePoint.PostSetupConfiguration.TaskThread.ExecuteTask() 09/09/2013 13:29:18 11 INF Entering function Common.BuildExceptionMessage 09/09/2013 13:29:18 11 INF
Entering function StringResourceManager.GetResourceString 09/09/2013 13:29:18 11 INF Resource id to be retrieved is ExceptionInfo for language English (United States) 09/09/2013 13:29:18 11 INF Resource retrieved id ExceptionInfo is An exception of type {0} was thrown. Additional exception information: {1} 09/09/2013 13:29:18 11 INF Leaving function StringResourceManager.GetResourceString 09/09/2013 13:29:18 11 INF
Leaving function Common.BuildExceptionMessage 09/09/2013 13:29:18 11 INF Entering function Common.BuildExceptionInformation 09/09/2013 13:29:18 11 INF Entering function Common.BuildExceptionMessage 09/09/2013 13:29:18 11 INF
Entering function StringResourceManager.GetResourceString 09/09/2013 13:29:18 11 INF Resource id to be retrieved is ExceptionInfo for language English (United States) 09/09/2013 13:29:18 11 INF Resource retrieved id ExceptionInfo is An exception of type {0} was thrown. Additional exception information: {1} 09/09/2013 13:29:18 11 INF Leaving function StringResourceManager.GetResourceString 09/09/2013 13:29:18 11 INF
Leaving function Common.BuildExceptionMessage 09/09/2013 13:29:18 11 INF Leaving function Common.BuildExceptionInformation