Error while running Crystal Report

Hi

private void SBO_Application_MenuEvent(ref SAPbouiCOM.MenuEvent pVal, out bool BubbleEvent)
        {
            BubbleEvent = true;
            if ((pVal.MenuUID == "Item Ledger") && pVal.BeforeAction == true)
            {
                SBO_Application.MessageBox("Report", 1, "Ok", "", "");
            }
}

Thanks