Error 9 : Subscript out of range

Hello,

I'm using the code below to call a macro if I6 contains "English".
The code runs and calls the macro but i get the 'error 9 : subscript out of range'.

Private Sub Worksheet_Change(ByVal Target As Range)    
If Range("I6") = "English" Then
        Call Macro1
    Else
        Call Macro2
    End If

Does anyone know how i can solve this?

Tx!