VBA code working on one file, giving error on another

[wenifede]

Hi, I've two Excel with Macro files. I copied a couple of pages from one to another. I had two macros, one for exporting to Pdf which is working fine also in the new file, and another one that would hide/show a section of a document.<br>This second one keeps giving error, while in the older file it's still working fine.<br>I don't understand why it's giving error. Can somebody help?

Sub ShowHideHP2()
' RemovePbreak Macro
Sheets("QUOTE").Select
Rows("318:536").Select
    If Selection.EntireRow.Hidden = True Then
   Selection.EntireRow.Hidden = False
   'Add Row Page Break
   Worksheets("QUOTE").Rows(318).PageBreak = xlPageBreakManual
   Worksheets("QUOTE").Rows(405).PageBreak = xlPageBreakManual
   Worksheets("QUOTE").Rows(471).PageBreak = xlPageBreakManual
   Else
   Selection.EntireRow.Hidden = True  (ON THIS LINE IS GIVING ERROR)
   'Clear Row Page
   Worksheets("QUOTE").Rows(318).PageBreak = xlPageBreakNone
   Worksheets("QUOTE").Rows(405).PageBreak = xlPageBreakNone
   Worksheets("QUOTE").Rows(471).PageBreak = xlPageBreakNone
End If
Sheets("Main calcs").Select
End Sub