Lock cells with VBA script

[apsblackhorse]

Hi everyone, could someone help me out on this one, please. So I have locked specific cells (highlighted on the pic). However, there was an existing script beside it (with a red formatted column) which eventually doesn't work when I locked the cells. What did I miss? SampleFile and script were attached. Thanks in advance.

Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
    Dim arr1
    Dim arr2
    Dim i As Long
    Dim r As Long
    Dim xCells As String
    ActiveSheet.Unprotect
    arr1 = Array(13, 21, 24, 27, 33, 39, 45, 51, 54, 60, 68, 76, 83, 88, 97, 101, 114, 119, 123, 131, 133, 147, _
        160, 167, 172, 179, 183, 187, 190, 199, 202, 213, 216, 232, 236, 245, 248, 252, 256, 260, 262, 265, 271, 273)
    arr2 = Array(6, 1, 1, 4, 4, 4, 4, 1, 1, 6, 6, 5, 3, 7, 2, 11, 3, 2, 6, 0, _
        12, 11, 5, 3, 5, 2, 2, 1, 7, 1, 6, 1, 14, 2, 7, 1, 2, 2, 2, 0, 1, 4, 0, 4)
    For i = 0 To UBound(arr1)
        r = arr1(i) + 1
        If Not Intersect(Range("B" & arr1(i)), Target) Is Nothing Then
            Cancel = True
            xCells = r & ":" & r + arr2(i)
            If Target.Value = "+" Then
                Rows(xCells).Hidden = False
                Target.Value = "-"
            Else
                Rows(xCells).Hidden = True
                Target.Value = "+"
            End If
        End If
        xCells = "H" & r & ":H" & r + arr2(i)
        If Not Intersect(Range(xCells), Target) Is Nothing Then
            Cancel = True
            Select Case Target.Value
                Case "X"
                    Target.Value = "P"
                Case "O"
                    Target.Value = "X"
                Case Else
                    Target.Value = "O"
            End Select
        End If
    Next i
    
    'Review Process Tab - Status selection (Yes/No/NA)
    If Not Intersect(Range("H282:H287"), Target) Is Nothing Then
        Cancel = True
        Select Case Target.Value
            Case "X"
                Target.Value = "P"
            Case "O"
                Target.Value = "X"
            Case Else
                Target.Value = "O"
        End Select
    End If
    'OFS Process Tab - Status selection (Yes/No/NA)
    If Not Intersect(Range("H290:H294"), Target) Is Nothing Then
        Cancel = True
        Select Case Target.Value
            Case "X"
                Target.Value = "P"
            Case "O"
                Target.Value = "X"
            Case Else
                Target.Value = "O"
        End Select
    End If
    ActiveSheet.Protect
End Sub