Is there a bug in SDK 8.8

Hi

I have a mistake with SAP 8.8

When i try to update an Items with this procedure

dim OITm as SAPbobsCOM.Items = SSOShell.Company.GetBusinessObject(SAPbobsCOM.BoObjectTypes.oItems)
        if oitm.GetByKey("0282")

            if Oitm.update <> 0
                Console.Error.WriteLine(SSOShell.Company.GetLastErrorDescription)
            else
                Console.Error.WriteLine("OK")

            End If
        End If

I have the error

[OITM.EvalSystem][line: 6] , 'Impossible d'actualiser cette zone (ODBC -1029)'