Problème sur les divisions APPLICATION DEIferror

Bonjour, j'ai ce message d'erreur dans ma maccro
sachant que le variant res3 peut avoir la valeur de 0, j'ai comme motif incompatibilité de type sur la ligne que j'ai surligné en jaune.
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Option Explicit
Dim Rep As Worksheet
Dim Mon As Worksheet
Dim PI As Worksheet
Dim i As Integer
Dim lr As Integer
Dim Tes As Worksheet
Dim Rep2 As Worksheet
Dim res As Variant
Dim f1 As Variant
Dim t As Variant
Dim Syn As Worksheet
Dim Mg As Worksheet
Dim j As Integer
Dim res1 As Variant
Dim res2 As Variant
Dim res3 As Variant
 
Sub Test()
 
 
Set Rep = Worksheets("Macro")
Set Mon = Worksheets("MoMO")
Set PI = Worksheets("PISTE")
Set Tes = Worksheets("Test")
Set Syn = Worksheets("Synthèse")
Set Mg = Worksheets("MagASIN")
 
lr = Range("A10000").End(xlUp).Row
 
Rep.Rows("6:1000").Clear
For j = 6 To 1000
    Rep.Range("AB" & j).Value = Syn.Range("C" & j)
 
    If Rep.Range("AB" & j).Value <> "" Then
        Rep.Range("A" & j).Value = Rep.Range("B1").Value
        Rep.Range("B" & j).Value = "Y"
        res2 = Application.IfError(Application.VLookup(Rep.Range("AB" & j).Value, Mon.Range("Q:BR"), 54, 0), 0)
        res3 = Application.IfError(Application.VLookup(Rep.Range("AB" & j).Value, Mg.Range("H:BF"), 51, 0), 0)
 
        Rep.Range("C" & j).Value = Application.IfError((res2 / res3) * 100, 0)
        Rep.Range("D" & j).Value = "EUR"
        Rep.Range("T" & j).Value = "A"
        Rep.Range("M" & j).Value = "D38"
 
        Rep.Range("AF" & j).Value = Application.VLookup(Rep.Range("AB" & j).Value, Syn.Range("C:D"), 2, 0)
 
        res1 = Application.VLookup(Rep.Range("AB" & j), PI.Range("E:G"), 3)
    End If
 
 
    If res1 = 0 Then
        Rep.Range("F" & j).Value = 0
    Else
        Rep.Range("F" & j).Value = 1
    End If
 
 
 
Next j
 
 
lr = Range("A10000").End(xlUp).Row
 
For i = 6 To 500
 
    res = Application.IfError(Application.VLookup(Rep.Range("AB" & i), PI.Range("E:G"), 3, 0), "0%")
    Rep.Range("AG" & i).Value = res
 
 
    If Rep.Range("F" & i).Value = 1 And Rep.Range("AG" & i).Value > 0 And Rep.Range("AG" & i).Value < 1 Then
 
        Tes.Range("AB" & i).Value = Rep.Range("AB" & i).Value
        Tes.Range("C" & i).Value = Rep.Range("C" & i).Value * (1 - Rep.Range("AG" & i).Value)
        Tes.Range("F" & i).Value = 0
        Tes.Range("D" & i).Value = Rep.Range("D" & i).Value
        Tes.Range("B" & i).Value = Rep.Range("B" & i).Value
        Tes.Range("A" & i).Value = Rep.Range("A" & i).Value
        Tes.Range("AG" & i).Value = Rep.Range("AG" & i).Value
        Tes.Range("T" & i).Value = Rep.Range("T" & i).Value
        Tes.Range("M" & i).Value = Rep.Range("M" & i).Value
        Tes.Range("AF" & i).Value = Rep.Range("AF" & i).Value
 
 
 
        Tes.Range("A" & i, "AZ" & i).Copy
 
 
        Rep.Range("A" & i, "AZ" & i).Offset(1, 0).Rows.Insert
 
        Rep.Range("C" & i).Value = Rep.Range("C" & i).Value * Range("AG" & i).Value
 
    End If
 
 
Next i
 
 
End Sub