Error:GetCatagories:Object reference not set to an instance of an object.:ST: at OrientTech.Excel.GetCatagories()Error:AddLinks:Object reference not set to an instance of an object.:ST: at OrientTech.Excel.Sendmail(String cFromEmail, String cToEmail, String cSMTPServer, String cSubject, String cBody, String cCC, String& _Status) at OrientTech.Excel.AddLinks()