I can’t seem to make this work. It is supposed to unlock the sheet, change the row status and lock back with the same PW.

Any ideas what might be wrong? I’m very new to VBA and this code is made using AI.

Sub Worksheet_Change(ByVal Target As Range)
   If Target.Address = "$M$10" Then
   If Target.Value > 0 Then
           If ActiveSheet.ProtectContents Then
               ActiveSheet.Unprotect Password:="TL1234"
               Rows("18:20").EntireRow.Hidden = False
               ActiveSheet.Protect Password:="TL1234"
           End If
       Else
           If ActiveSheet.ProtectContents Then
               ActiveSheet.Unprotect Password:="TL1234"
               Rows("18:20").EntireRow.Hidden = True
               ActiveSheet.Protect Password:="TL1234"
           End If
       End If
   End If
End Sub

Rows image

I’ve tried with and without the “Activesheet”-lines to make it simpler, couldn’t quite make that work either, even though it worked previously…