WEBAPI审核报错，请问这个是什么问题？

{"Result":{"ResponseStatus":{"ErrorCode":500,"IsSuccess":false,"Errors":[{"FieldName":"An item with the same key has already been added.","Message":"\r\nServer stack trace: \r\n at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)\r\n at Kingdee.BOS.Core.BusinessPolicyModel.LogicalUnit.get_InputProperties()\r\n at Kingdee.BOS.Core.BusinessPolicyModel.BusinessPolicyEngine.GetCanRunAction(Dictionary`2 currentVariables, IList`1 currentActions)\r\n at Kingdee.BOS.Core.BusinessPolicyModel.BusinessPolicyEngine.BuildActions()\r\n at Kingdee.BOS.Core.BusinessPolicyModel.BusinessPolicyEngine.Do(OperateOption context)\r\n at Kingdee.K3.MFG.PLN.App.Core.Reserve.ReserveEngine.DoReserveLink(String timePoint, OperateOption option, Action`2 setVariables)\r\n at Kingdee.K3.MFG.PLN.App.Core.ReserveLinkService.ReleaseReserveLinkByOutStock(Context ctx, ReserveArgs`1 releaseLinkArg, OperateOption option)\r\n at Kingdee.K3.MFG.PLN.App.Core.AppBusinessService.ReserveLinkReleaseBusinessService.CallReleaseService()\r\n at Kingdee.K3.MFG.PLN.App.Core.AppBusinessService.ReserveLinkReleaseBusinessService.DoActionBatch(AppBusinessServiceArgs e)\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.ExecuteFormBusinessService(IAppFormBusinessService iBusiness, ExtendedDataEntity[] dataEntities, FormBusinessService service)\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.InvokeFormBusiness(DynamicObject[] objs, Int32 iActionPoint)\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.CallOperation(DynamicObject[]& objs)\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.CallOperatinTransaction(DynamicObject[] objs)\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.DoExcete()\r\n at Kingdee.BOS.App.Core.AbstractOprerationService.Excute(Object[] ids)\r\n at Kingdee.BOS.App.Core.AbstractSetStatus.Excute(Object[] ids)\r\n at Kingdee.BOS.App.Core.SetStatusService.SetBillStatus(Context ctx, BusinessInfo businessInfo, List`1 pkEntryIds, List`1 paras, String operationNumber, OperateOption option)\r\n\r\nException rethrown at [0]: \r\n at Kingdee.BOS.ServiceHelper.BusinessDataServiceHelper.SetBillStatus(Context ctx, BusinessInfo businessInfo, List`1 pkEntryIds, List`1 paras, String operationNumber, OperateOption option)\r\n at Kingdee.BOS.WebApi.FormService.AbstractStatusConvert.ExecuteStatusConvert(List`1 paras)\r\n at Kingdee.BOS.WebApi.FormService.Audit.Execute()\r\n at Kingdee.BOS.WebApi.FormService.BillOperationService.ExecuteOperation(FormOperation op, String data)","DIndex":0}],"SuccessEntitys":[],"SuccessMessages":[]}}}