Android Question java.lang.RuntimeException: POP3 should first be initialized.

Sub POP_ListCompleted (Success As Boolean, Messages As Map)
    Log("List: " & Success)
    If Success Then
        For i = 0 To Messages.Size - 1
            Pop.DownloadMessage(Messages.GetKeyAt(i), True) 'Download all messages and delete them
        Next
    Else
        Log(LastException.Message)
    End If
    POP.Close 'The connection will be closed after all messages are downloaded
End Sub