Can't perform an exp() function on VBA

Hi, I am trying to perform calculations on different columns in an Excel Spreadsheet in VBA, and for that I am using an exp() function. However, I get a result that the argument is not valid? How could I solve this issue?

Sub Exponent()
    Dim save1 As Double
    Dim save2 As Double
    Dim save3 As Double
    Dim Qconst1 As Integer
    Dim Qconst2 As Integer
    Dim Expon As Double

    Qconst1 = -0.5 * Log(2 * WorksheetFunction.Pi) + Log(0.05)
    Qconst2 = 1 / Sqr(2 * WorksheetFunction.Pi)

    For i = 9 To 1266
        Sheets(1).Cells(i, 16).Value = Qconst2 / Cells(i, 14) * WorksheetFunction.Exp(-0, 5 * Cells(i, 12) * Cells(i, 12) / Cells(i, 13) / Cells(i, 13)) * 0.01
    Next i

End Sub

It's supposed to be only one argument, with the values from different cells.. And, yes, 0.5

Still, I get a message: Method or Data member not found.. for the Exp function..

Here it comes

It works somehow.. except that I have a problem with the second column... why is it there?

It's okay, I see why Because I made a copy of something that is empty. It should work otherwise. Thanks.