调试中出现的问题，请大侠解答

ADODB.Recordset 错误 '800a0cc1'

在对应所需名称或序数的集合中，未找到项目。

/2626/CN_AdmProduct/edit.asp，行 313

代码如下（313行已经用红色标记）：
'=============================== 更新数据库记录
    Set oRs = Server.CreateObject("ADODB.Recordset")
    sSQL = "Select * From " & tableName1 & " Where ID=" & nID
    oRs.Open sSQL,conn,1,3
        
    If nID = 0 Then oRs.AddNew()
    
        oRs("star")=star
        oRs("num")=num
        mmI=0
        do while mmI<fieldNum            
            If field(mmI,0) <> "" Then
            oRs(field(mmI,2))=field(mmI,0)
            End If
            mmI=mmI+1
        Loop
        
    
    oRs.Update()
    oRs.Close()

    If nID=0 Then
       oRs.open "select top 1 ID from products order by ID desc",conn,3,3
       nID=oRs(0)
       oRs("fileName")="jiudian" & nID & ".html"       
            oRs.update
       oRs.close
    End if

    strFileName=request("fileName")
    If strFileName="" Then strFileName="jiudian" & nID & ".html"
    If strFileName<>"" then
       response.redirect "/sendDetail.asp?act=1&redirect=jiudian&sourceUrl=hotel.asp__ID=" & nID & "&fileName=" & strFileName
       
    else
       Response.Write("<script>alert('操作成功.');history.go(-2);</script>")
    End if