loading an empty DB field in Tree

[scoutt]

How can I insert a field from a DB that is empty in to a tree as a child. I know the field is empty I just can't get it to load. I tried this

If IsNull(rsRoutines.Fields("Description")) Then
      tvwMain.Nodes.Add "Routine" & rsRoutines("ParentID"), _
      tvwChild, "Routine" & rsFiltered("counter"), _
     rsFiltered("Routine"), "closed", "open"

but it comes back and tells me "element not found" and highlights the code above but points to the bold line

this is the full code

Set rsRoutines = dbName.OpenRecordset("SELECT * FROM Routine " _
& "ORDER BY ParentID, Routine") ', dbOpenSnapshot)
Dim SelectString As String
SelectString = "Select * from Routine where [Counter]= " + Label2
      Set rsFiltered = dbName.OpenRecordset(SelectString)
      Do While Not rsFiltered.EOF
?'Add routine nodes 
      If rsRoutines.Fields("ParentID") > "0" Then
          tvwMain.Nodes.Add "Routine" & rsRoutines("ParentID"), _
          tvwChild, "Routine" & rsFiltered("counter"), _
	  rsFiltered("Routine"), "code", "codered" 
		
      If IsNull(rsRoutines.Fields("Description")) Then
      tvwMain.Nodes.Add "Routine" & rsRoutines("ParentID"), _
      tvwChild, "Routine" & rsFiltered("counter"), _
     rsFiltered("Routine"), "closed", "open"
		  End If
	  End If
		rsFiltered.MoveNext
	  Loop
		rsRoutines.MoveNext
  Loop

the first if..then works fine it is the second one that doesn't. What am I doing wrong?

TIA