Why do i get "Document command not available error" when i trying to execute an approve action for a form. Its like a flow of approval cycle. This error occurs only for the last approver. When clicked on approve by last approver this error occurs. and the document is not getting approved. And on rejecting a different error message like "Notesdocument-cannot locate field" occurs but the document is rejected on pressing Ok. Can anybody help me please.
below is the code for approve action

```vb
Sub Click(Source As Button)
    Dim w As New notesuiworkspace
    Dim uidoc As notesuidocument

    Set uidoc = w.currentdocument
    process = True
    approveapplication
    gprocess = False

    uidoc.Save
    uidoc.Refresh
End Sub

```

and for reject action:

```vb
Sub Click(Source As Button)
    Dim w As New notesuiworkspace
    Dim uidoc As notesuidocument

    Set uidoc = w.currentdocument
    process = False
    rejectapplication
    gprocess = False

    uidoc.Save
    uidoc.Refresh
End Sub

```

The above action is fine for previous approvers.
Please help