报错信息如下，CLOUD版本V3.0，已打补丁090324，请研发的老师帮忙看一下问题出在哪里
There is already an open DataReader associated with this Command which must be closed first.
发生时间：15:49:03
错误来源： System.Data
错误信息：There is already an open DataReader associated with this Command which must be closed first.
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调用堆栈：
at System.Data.SqlClient.SqlInternalConnectionTds.ValidateConnectionForExecute(SqlCommand command)
at System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteScalar()
at Kingdee.BOS.App.Data.AbstractDatabase.ExecuteScalar(DbCommand command, SqlParam[] paramList)
at Kingdee.BOS.App.Data.DBUtils.ExecuteScalar[T](Context ctx, String strSql, T defaultValue, SqlParam[] paramList)
at Kingdee.K3.FIN.App.Core.CommonFunction.GetVchGroupNo(Context ctx, Int32 vchNoSortType, Int64 bookID, Int64 vchGroupID, Int32 year, Int32 perriod)
at Kingdee.K3.FIN.GL.App.Core.VchGroupNoService.GetVchGroupNoUserNo(Context ctx, Int32 vchNoSortType, Int64 bookID, Int64 vchGroupID, Int32 year, Int32 period)
at Kingdee.K3.FIN.GL.App.Core.VchGroupNoService.AutoBuildVchGroupNo(Context ctx, Int64 bookID, Int64 vchGroupID, Int32 year, Int32 period)
at Kingdee.K3.FIN.GL.App.Core.TransferPLService.CreatePLVoucher.GetVoucherGroupNo(Context ctx, Int64 bookId, Int64 groupId, Int32 year, Int32 period)
at Kingdee.K3.FIN.GL.App.Core.TransferPLService.CreatePLVoucher.CreateVoucherHead(Context ctx, SaveVoucher saveVch, IDictionary`2 dctPara)
at Kingdee.K3.FIN.GL.App.Core.TransferPLService.CreatePLVoucher.CreateTransferPLVoucher(Context ctx, IDictionary`2 dctPara)
at Kingdee.K3.FIN.GL.App.Core.TransferPLService.CreatePLVoucher.TransferPL(Context ctx, String tempAcctTable, String strFlexItemNo, Int64 lngGroupId, String strItemId, IDictionary`2 dctPara)
at Kingdee.K3.FIN.GL.App.Core.TransferPLService.CreatePLVoucher.TransferProfitAndLoss(Context ctx, IDictionary`2 dctPara)
at Kingdee.K3.FIN.GL.ServiceHelper.TransferPLServiceHelper.TransferProfitAndLoss(Context ctx, IDictionary`2 dctPara)
at Kingdee.K3.FIN.GL.Business.PlugIn.TransferPLEdit.WizardStepChanged(WizardStepChangedEventArgs e)
at Kingdee.BOS.Core.DynamicForm.PlugIn.WizardForm.WizardFormViewPlugInProxy.FireWizardStepChanged(WizardStepChangedEventArgs e)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.ButtonClick(String key, String menuKey)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormController.ButtonClick(String buttonKey, String menuKey, JSONArray postDatas)
错误数据： System.Collections.ListDictionaryInternal
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