The byte stream was erroneous according to the character encoding that was inherited from the parent document. The character encoding needs to be declared in the Content-Type HTTP header, using a meta tag, or using a byte order mark.
Asuddem n yiṭamḍanen yecceḍ alaḥsab n usettengel n yisekkilen i d-yekkan seg yisemli amarraw. Ɣef waya ilaq useɣru n usettengel n yisekkilen deg uqerru n HTTP Content-Type, s useqdec n tebzimt meta neɣ s useqdec n umatar n umyizwer n yiṭamḍanen.