[XL-2010] erreur dans l'utilisation de if, elseif, else imbriqués

Bonjour à tous,
en lisant l'intitulé quelqu'un a sûrement un tuto à m'envoyer.
Pouvez,s'il vous plait, me dire ce qui ne va pas?
le code semble ne pas marcher après le 2ieme ELSEIF.
le code que j'ai écrit.

Code:

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Windows(strExtractDataFile).Activate
 With Sheets("CAL")
 
   For i = 2 To intNbLigneAVAN_cal
   'cas1
If (proftub1 <> 0 And .Cells(i, 7) <= proftub1) Then
.Cells(i, 8) = diamnom1
  ElseIf (.Cells(i, 14) <= 38 And .Cells(i, 7) > proftub1) Then .Cells(i, 8) = diamnom2
 'Else: .Cells(i, 8) = .Cells(i, 14)
  'End If
 
 'cas2
 ElseIf (proftub2 <> 0 And .Cells(i, 7) > proftub1 And .Cells(i, 7) <= proftub2) Then
 .Cells(i, 8) = diamnom2
 ElseIf (proftub2 <> 0 And .Cells(i, 14) <= 38 And .Cells(i, 7) > proftub2) Then
 .Cells(i, 8) = diamnom3
 'Else: .Cells(i, 8) = .Cells(i, 14)
' End If
 'cas3
ElseIf (proftub3 <> 0 And .Cells(i, 7) > proftub2 And .Cells(i, 7) <= proftub3) Then
.Cells(i, 8) = diamnom3
 ElseIf (proftub3 <> 0 And .Cells(i, 14) <= 38 And .Cells(i, 7) > proftub3) Then .Cells(i, 8) = diamnom4
' Else: .Cells(i, 8) = .Cells(i, 14)
'End If
 
'cas4
ElseIf (proftub4 <> 0 And .Cells(i, 7) > proftub3 And .Cells(i, 7) <= proftub4) Then
.Cells(i, 8) = diamnom4
 ElseIf (proftub4 <> 0 And .Cells(i, 14) <= 38 And .Cells(i, 7) > proftub4) Then .Cells(i, 8) = diamnom5
'  Else: .Cells(i, 8) = .Cells(i, 14)
 ' End If
  'cas5
ElseIf (proftub5 <> 0 And .Cells(i, 7) > proftub4 And .Cells(i, 7) <= proftub5) Then
.Cells(i, 2) = diamnom5
ElseIf (proftub5 <> 0 And .Cells(i, 14) <= 38 And .Cells(i, 7) > proftub5) Then .Cells(i, 8) = diamnom6
'  Else: .Cells(i, 8) = .Cells(i, 14)
 ' End If
  'cas6
ElseIf (proftub6 <> 0 And .Cells(i, 7) > proftub5 And .Cells(i, 7) <= proftub6) Then
.Cells(i, 2) = diamnom6
 ElseIf (proftub6 <> 0 And .Cells(i, 14) <= 38 And .Cells(i, 7) > proftub6) Then .Cells(i, 8) = diamnom6
 Else:
 
 .Cells(i, 8) = .Cells(i, 14)
  End If
 Next i
End With

Merci d'avance.