The phrase c'est pas une erreur is everyday French for it's not a mistake, and this recording circulates as a forwarded WhatsApp audio rather than a clip from a known film or show. Its origin and original speaker are not documented, so its life is entirely online, passed between group chats and reposted on soundboards as a ready made reply. It sits alongside other forwarded French clips like arrêtez d'envoyer les messages, which are kept for their recognisable delivery rather than their source. People still reuse it because the denial works for almost any small accusation.