vb.net populate combobox from access database

I can't seem to populate this ComboBox from an access database. The Error is in the SQL statement. The table name is Lists and the column I want to use in the combobox is instructorList. It worked when I was using asp.net but now I have to convert it to a windows application and I can't make it work.

cnstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\data.mdb;"
        cn = New OleDbConnection(cnstring)
 
        SQLstring = "SELECT * FROM Lists"
 
        Dim cmd As New OleDbCommand(cnstring, cn)
        da = New OleDbDataAdapter(cnstring, cn)
        ds = New DataSet
        da.Fill(ds, "data")
 
        combox1.DataSource = ds.Tables(0)
        combox1.DisplayMember = "data"
        combox1.ValueMember = "instructorList"

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