Add Sheet To Workbook In Certain Position

I execute code to open Excel, add a workbook, and then add a 4th worksheet to the workbook. The first time through the code it works like a charm. When I execute the code the second time, I get the following error: Error Number 1004, Method 'Sheets' of object '_Global' failed.

Dim xlApp As Excel.Application
Dim xlWB As Excel.Workbook

Public Sub CreateCSVs(dtBeginDate As Date)
On Error Goto HandleError
Dim N As Integer
Dim I As Integer
Dim P As Integer
Dim strDsrc As String
Dim strDsrcDesc As String
Dim strDsrcCode As String
Dim strDsrcId As String
Dim strDate As String
Dim strTime As String
Dim strFileName As String
Dim strSheetName As String
Dim strTableName As String..............