please help to find out the error in this code?

When applying the code using the IF and else rule, it applies to the first condition only and ignores the second condition, labs is a label
Thank you

Dim ww As Double, z As Double, s As Double, n As Double, j As Long
On Error Resume Next
ww = Application.WorksheetFunction.VLookup(ComboBox5.Value, ThisWorkbook.Sheets("users").Range("y2:z1000"), 2, 0)
With ListBox1
     For j = 0 To ListBox1.ListCount - 1

   If .List(j, 8) <> "" Then z = z + ListBox1.List(j, 6) * ww
                                      s = s + ListBox1.List(j, 6) * ww
                                      n = n + ListBox1.List(j, 6)
If ComboBox5.Value <> Labs2.Caption Or ComboBox5.Value <> Labs3.Caption Or ComboBox5.Value <> Labs4.Caption _
    Or ComboBox5.Value <> Labs5.Caption Then
         t11.Value = s
   Else
         t11.Value = z
End If
    tx3.Value = n
    Frame61.Visible = False

    Labs7.Caption = ComboBox5.Value
    Next j
End With
On Error GoTo 0