compile error variable not defined. ...

Hi experts

I have following macro taken from the link provide by on of the experts on the site...

I want the following macro to hide on opening the spreadsheet and When the file is closed it turns the aforementioned back on

ribbon
formula bar
status bar
tabs

and hide all sheets leaving just one visible....

I cannot get the code to work on opening the workbook.....I keep on getting a compile error....when running the macro.

see link:

Private Sub Workbook_Activate()

Set myRange = ActiveSheet
   Application.ScreenUpdating = False
   Application.ExecuteExcel4Macro "SHOW.TOOLBAR(""Ribbon"",False)"
   Application.DisplayFormulaBar = False
   Application.DisplayStatusBar = Not Application.DisplayStatusBar
   ActiveWindow.DisplayWorkbookTabs = False

   Dim wbBook As Workbook
   Dim wsSheet As Worksheet

   Set wbBook = ThisWorkbook

   For Each wsSheet In wbBook.Worksheets
      If Not wsSheet.Name = "Blank" Then wsSheet.Activate
         With ActiveWindow
            .DisplayHeadings = False
            .DisplayGridlines = False
            ActiveSheet.Protect DrawingObjects:=True, Contents:=True, Scenarios:=True, AllowFormattingRows:=True
            
         End With
   Next wsSheet

myRange.Select

End Sub

Private Sub Workbook_Deactivate()

Set myRange = ActiveSheet
   Application.ScreenUpdating = False
   Application.ExecuteExcel4Macro "SHOW.TOOLBAR(""Ribbon"",True)"
   Application.DisplayFormulaBar = True
   Application.DisplayStatusBar = True
   ActiveWindow.DisplayWorkbookTabs = True

   Dim wbBook As Workbook
   Dim wsSheet As Worksheet

   Set wbBook = ThisWorkbook

   For Each wsSheet In wbBook.Worksheets
      If Not wsSheet.Name = "Blank" Then wsSheet.Activate
         With ActiveWindow
           .DisplayHeadings = True
           .DisplayGridlines = True
           ActiveSheet.Protect DrawingObjects:=True, Contents:=True, Scenarios:=True, AllowFormattingRows:=True
        
         End With
   Next wsSheet

myRange.Select
End Sub