Question : Which open source e-commerce project is used to implement this website?

I want to know which open source e-commerce project is used to implement this website. Can we find the details of this website?

Answer : Which open source e-commerce project is used to implement this website?

On Error Resume Next should generally be used only in simple single purpose subs and functions that are called by your main subs (e.g. checking of a workbook is open or a sheet exists). Beyond that, error handling is really for catching unexpected errors or errors that you cannot readily handle in any other way. Typically you have an:

On Error Goto err_handler

line at the start (where 'err_handler' is a label in your code)

then an error handler section at the end, which in my case usually returns you to a clean-up section at the end of the code. For example:

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Private Sub Worksheet_Change(ByVal Target As Range)
    Dim rngCell As Range, strPrefix As String
    
   On Error GoTo Worksheet_Change_Error
    
    Application.EnableEvents = False
    
    If Not Intersect(Target, Range("A:A")) Is Nothing Then
        strPrefix = Range("C2").Value
        For Each rngCell In Intersect(Target, Range("A:A"))
            If Len(rngCell.Value) > 0 Then
                If InStr(1, rngCell.Value, strPrefix, vbTextCompare) <> 1 Then
                    rngCell.Value = strPrefix & rngCell.Value
                End If
            End If
        Next rngCell
    End If

clean_up:
    Application.EnableEvents = True
   Exit Sub

Worksheet_Change_Error:

    MsgBox "Error " & Err.Number & " (" & Err.Description & ") in procedure Worksheet_Change of VBA Document Sheet1"
    Resume clean_up
End Sub