recursive read lock acquisitions not allowed in this mode c#

I got this error when i am trying to connect crm2011 online organisation in C#

   {"Recursive read lock acquisitions not allowed in this mode."}


at System.Threading.ReaderWriterLockSlim.TryEnterReadLockCore(Int32 millisecondsTimeout)
   at System.Threading.ReaderWriterLockSlim.TryEnterReadLock(Int32 millisecondsTimeout)
   at System.Threading.ReaderWriterLockSlim.TryEnterReadLock(TimeSpan timeout)
   at Microsoft.Xrm.Client.Services.OrganizationService.InnerOrganizationService.get_Value()
   at Microsoft.Xrm.Client.Services.OrganizationService.Dispose()
   at Pragma.Survey.CRMUtility.CRM4Service.get_CRMService() in C:\Users\Administrator.CRM2011\Desktop\PragmaSurveyManager\Solution\Survey Manager\Pragma.Survey.CRMUtility\CRM4Service.cs:line 76
   at Pragma.Survey.CRMUtility.CRM4Service.RetrieveSuveyTemplateById(Guid SurveyTemplateId) in C:\Users\Administrator.CRM2011\Desktop\PragmaSurveyManager\Solution\Survey Manager\Pragma.Survey.CRMUtility\CRM4Service.cs:line 819
   at Pragma.Survey.BLL.SurveyManager.GetInitialSurveyDetails(Guid SurveyTemplateid) in C:\Users\Administrator.CRM2011\Desktop\PragmaSurveyManager\Solution\Survey Manager\Pragma.Survey.BLL\SurveyManager.cs:line 72