#21 Failed to get task

[Anonymous]

ERROR 19:03:42,281 Genesis.Service.WorkflowService -
Get task failed
Exception: System.Data.SqlClient.SqlException
Message: Violation of PRIMARY KEY
constraint 'PK__locktable__31EC6D26'. Cannot insert
duplicate key in object 'locktable'.
The statement has been terminated.
Source: .Net SqlClient Data Provider
at System.Data.Common.DbDataAdapter.Update
(DataRow[] dataRows, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.Update
(DataTable dataTable)
at
Aspose.Workflow.Internal.DbDataAdapterExImpl.Update
(DataTable table)
at
Aspose.Workflow.Internal.ProcessLockMasterImpl.UnLo
ck(AsposeWorkflowTransaction t)
at
Aspose.Workflow.Kernel.AsposeWorkflowUtilities.UnLoc
k(AsposeWorkflowTransaction t)
at
Aspose.Workflow.Kernel.AsposeWorkflowUtilities.Releas
eTransaction(AsposeWorkflowTransaction t)
at
Aspose.Workflow.Kernel.AsposeWorkflowConnectionImp
l.GetResourceObject()
at Aspose.Workflow.Engine.Impl.WorklistImpl..ctor
(IEngine engine, AsposeWorkflowInterface
asposeWorkflow, AsposeWorkflowConnection
asposeConnection, String userName)
at
Aspose.Workflow.Engine.Impl.EngineImpl.get_Worklist()
at Genesis.WorkFlowController.Controller.GetAllTasks
() in
F:\project\Genesis\Genesis.WorkflowController\Controller
.cs:line 156
at Genesis.Service.WorkflowService.GetTasks() in
F:\project\Genesis\Genesis.Service\WorkflowService.as
mx.cs:line 72