运行时错误1004：范围类的自动筛选方法失败

Question

这里是新功能，我目前正在学习VBA。我有一个同事，他最近创建了一个与我正在做的项目类似的项目，我在工作簿中引用他的代码以执行相同的操作。唯一的麻烦是我遇到此错误：

Dim partSearch As Range
Dim partFind As Variant
Dim partTotal As Variant
Dim partLoc As Variant
Dim partColor As Variant
 Application.ScreenUpdating = False
 Sheets("Import").Select
 Range("C2").Activate
 partFind = ActiveCell.Value
 Sheets("2019").Select
 Rows("28:28").Select
 Selection.AutoFilter
   Range("A2").Select
   Set partSearch = Cells.Find(What:=partFind, After:=ActiveCell, 
     LookIn:=xlFormulas, _
     LookAt:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext, _
     MatchCase:=False, SearchFormat:=False)
   If Not partSearch Is Nothing Then
    Cells.Find(What:=partFind, After:=ActiveCell, LookIn:=xlFormulas, _
        LookAt:=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext, _
        MatchCase:=False, SearchFormat:=False).Activate
 partColor = Cells(24, (ActiveCell.Column)).Value
 Range("BM" & (ActiveCell.Row)).Select
 Do
    partTotal = ActiveCell.Value

    If partTotal = "X" Or partTotal = "x" Then
        Cells(28, (ActiveCell.Column)).Select
        partLoc = ActiveCell.Value
        ActiveSheet.Range("$A$28:$PB$535").AutoFilter Field:=partLoc, 
        Criteria1:="
            ActiveSheet.Range("$A$28:$PB$535").AutoFilter Field:=24,          
            Criteria1:="="`
        Else
            ActiveCell.Offset(0, 1).Activate
        End If

错误在这里发生：

ActiveSheet.Range("$A$28:$PB$535").AutoFilter Field:=partLoc, Criteria1:="<>"
            ActiveSheet.Range("$A$28:$PB$535").AutoFilter Field:=24,          
            Criteria1:="="`
        Else
            ActiveCell.Offset(0, 1).Activate
        End If