Excel Object Errors

I'm trying to help out some folks who are using an Excel workbook with macros behind it that I cannot decypher. One of our users can run this but the rest of us can't.

At present, the code blows up on the last line of this code:

Dim InI As Integer
    Dim InJ As Integer
    Dim VaRecLayout_array As Variant
    Dim RnAnchorCell As Range
    Dim WkProgFile As Workbook
    Dim StSheetName As String
    Dim StrArray() As Variant
    Dim ArParse(1 To 2) As Integer
    Dim IntNoCols As Integer
    Dim StDataFilePath As String
    Dim StDataFileName As String
    Dim RnC As Range
    Dim VrResp As Variant
    Dim StFileDate As String
    Dim DblDbControlSum As Double
    Dim DblCrControlSum As Double
    Dim StTrailer As String
    Dim DblDbAmts As Double
    Dim DblCrAmts As Double
    Dim StOutputFile As String
    Dim StProcDate As String
    Dim WkbTRVLRS As Workbook
    Dim fso As New FileSystemObject
    Dim blTrailerFound As Boolean
   
    '----------------------------------------------------------|
    'Intitialize variables
    ReDim ArWkSheets(1)

When I comment out the row, the program blows up with the same error further down. The error is "Cannot load object because it does not exist on this machine."

Obviously there is something in either the Excel settings that needs to be modified, or there is something that needs to be loaded on the other computers that will allow this code to run.

Any suggestions will be appreciated.