Running process by FlowEngine

Hi;

We run the process like that

            ProcessSchema schema = userConnection.ProcessSchemaManager.GetInstanceByName("UsrSendExtraPaymentCancellationToNav");

            bool canUseFlowEngine = ProcessSchemaManager.GetCanUseFlowEngine(userConnection, schema);

            if (canUseFlowEngine)

            {

                var flowEngine = new FlowEngine(userConnection);

                var param = new Dictionary();

                param["Quotation"] = quotationId.ToString();

                flowEngine.RunProcess(schema, param);

            }

            else

            {

                Process process = schema.CreateProcess(userConnection);

                process.SetPropertyValue("Quotation", quotationId);

                process.Execute(userConnection);

            }

and from time to time error occurs:

Terrasoft.Common.ItemNotFoundException: Collection item with unique identifier "24240d57-78ed-41ad-8877-22acad56de30" not found.     at Terrasoft.Core.Process.Process.GetFlowElementBySchemaElementUId(Guid schemaElementUId)     at Terrasoft.Core.Process.TaskService.WriteErrorToProcessLog(TaskServiceQueueItem queueItem, ProcessComponentSet process)     at Terrasoft.Core.Process.TaskService.ReceiveMessage(TaskServiceQueueItem taskServiceQueueItem)     at Terrasoft.Core.Process.QueueEmulator.b__8_0(TaskServiceQueueItem message)     at Terrasoft.Core.Process.FlowVisitor.Dequeue()     at Terrasoft.Core.Process.FlowService.StartFlow(Guid processUId, FlowSchema flowSchema)     at Terrasoft.Core.Process.FlowService.StartFlow(TaskServiceQueueItem message)     at Terrasoft.Core.Process.FlowService.ReceiveMessage(TaskServiceQueueItem message)     at Terrasoft.Core.Process.QueueEmulator.b__9_0(TaskServiceQueueItem message)     at Terrasoft.Core.Process.FlowEngine.EnqueueProcess(ProcessComponentSet processComponentSet)     at Terrasoft.Core.Process.FlowEngine.RunProcess(BaseProcessSchema schema, Dictionary`2 nameValueMap)     at Terrasoft.Configuration.ClaimQuotationDAO.CancelExtraPaymentNAV(Guid quotationId)     at Terrasoft.Configuration.ClaimQuotationDAO.ChangeStatusAndStatusReasonForAllClaimQuotation(String claimNumber, Guid statusId, Guid statusReasonId)     at Terrasoft.Configuration.QuotationService.ChangeQuotationStatus(String claimNumber, Guid statusId, Guid statusReasonId)     at Terrasoft.Core.Process.UsrCloseClaimLiquidationAfterReturnBenefitMethodsWrapper.UsrRejectedAllClaimQuotationsExecute(ProcessExecutingContext context)     at Terrasoft.Core.Process.ProcessFlowElement.Execute(ProcessExecutingContext context)



Where identifier id id of startEvent



any idea?



Regards

Tomek