I'm getting the following error on the line 'ua' below. I'm trying to automate an Upsert to Salesforce through VBA using the enabler4excel object [automationObject].

Run-time error '-2147467261 (80004003)

Object reference not set to an instance of an object

Here is my code:

Dim addin As Office.COMAddIn
Dim automationObject As Object

For Each addin In Application.COMAddIns
    If addin.Description = "Enabler for Excel" Then
        Set automationObject = addin.Object
    End If
Next addin

Dim error
result = automationObject.LogIn(Username,Password,"https://test.salesforce.com", error)
If result = False Then
      MsgBox error
      End
End If

Range("b1").Select
Selection.End(xlDown).Select
bot_acc = ActiveCell.Row

Dim ExternalId As String
ExternalId = Range("A1")

Dim ObjectName As String
ObjectName = "Account"

Dim AccUpArray(13, 9999) As Variant

For Column = 0 To 12
    For Row = 0 To bot_acc - 2
        AccUpArray(Column, Row) = Worksheets("Account").Range("A2").Offset(Row, Column)
    Next Row
Next Column

ua = automationObject.UpsertData(AccUpArray, ObjectName, ExternalId, False, Nothing, error)
If Not error = Empty Then
     MsgBox error
     End
End If