Correction code vba

Bonjour je voudrais corriger ce code en modifiant le FEV2012 par fich mais ca ne fonctionne pas qui me peut m aider ???

Sub Controler()
Dim DerLigne As Long
Dim Cel As Range, Plage As Range
Application.ScreenUpdating = False
With Worksheets("FEV2012")
Set Plage = .Range("A2:A" & .Range("A" & .Rows.Count).End(xlUp).Row)
End With
With Worksheets("GLOBAL")
DerLigne = .Range("A" & .Rows.Count).End(xlUp).Row
For Each Cel In .Range("A2:A" & DerLigne)
If Application.CountIf(Plage, Cel) > 0 Then
If UCase(Cel.Offset(0, 13)) <> "OK" Then
Cel.Offset(0, 13) = "OK"
Else
msg = msg & Chr(10) & "Erreur Ligne " & Cel.Row
End If
Else
Cel.Offset(0, 13) = ""
End If
Next Cel
Set Cel = Nothing
Set Plage = Nothing
End With
Application.ScreenUpdating = True
If msg <> "" Then MsgBox msg
End Sub