IF statement does not stop correctly

Hi all

I was recently given the below code which seemed to work correctly, but unfortunately it does not stop when it comes to the field "lost clients". It carries on rather than stepping to the next piece of code. I have tried multiple times to fix this myself, but as usual failed. All help appreciated.
Thank you

Sheets("exempt final").Select
    
lr = Cells(Rows.Count, 1).End(xlUp).Row
For i = 1 To lr
    If Cells(i, 1).Value = "LOST CLIENTS" Then
    
   
  '  End If
    
       
    Else
        If Cells(i, 3).Value <> "" Then
            ' Do Nothing
        Else
            Cells(i, 3).Value = Cells(i - 1, 3).Value
        End If
      
    End If
    
Next i