The report cannot be displayed.(rsProcessingAborted)

Hi guys,

Currently I'm facing SSRS problem. When I run the report, it will show like this.

When I see inside the reporting service log, it show this error.

processing!ReportServer_0-1!d18!03/06/2014-15:00:08:: e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: , Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Cannot create a connection to data source 'Adventure_Works_Cycle_MSCRM'. ---> Microsoft.Crm.Reporting.DataExtensionShim.Common.ReportExecutionException: Immediate caller NT AUTHORITY\NETWORK SERVICE has insufficient privilege to run report as user S-1-5-21-1311266088-118511792-1381041710-500.
   at Microsoft.Crm.Reporting.DataExtension.Common.ExceptionManager.Assert(Boolean condition, String message)
   at Microsoft.Crm.Reporting.DataExtension.Common.DataExtensionConnectionBase.ValidateCaller(SecurityIdentifier user)
   at Microsoft.Crm.Reporting.DataExtension.Common.DataExtensionConnectionBase.<>c__DisplayClass1.<Open>b__0()
   at Microsoft.Crm.Reporting.DataExtension.Common.ExceptionManager.HandleUnsafeException(Action body)
   at Microsoft.Crm.Reporting.DataExtensionShim.Common.ICrmDbConnectionExtension.Open(String userSid)
   at Microsoft.Crm.Reporting.DataExtensionShim.Common.SrsExtConnectionBase.Open()
   at Microsoft.ReportingServices.Diagnostics.DataExtensionConnectionBase.OpenDataSourceExtensionConnection(IProcessingDataSource dataSourceObj, String connectString, DataSourceInfo dataSourceInfo, String datasetName)
   --- End of inner exception stack trace ---;