A form was submitted in the %S encoding which cannot encode all Unicode characters, so user input may get corrupted. To avoid this problem, the page should be changed so that the form is submitted in the UTF-8 encoding either by changing the encoding of the page itself to UTF-8 or by specifying accept-charset=utf-8 on the form element.
Tiferkit tettwazen s usettengel n tfinaɣin %S ayen ur yezmiren ara ad isettengel akk tfinaɣin Unicode; tira n useqdac tezmer ihi ad d-teffeɣ tettwaɣ. Iwakken ur d-yettili ara wugur-a, ilaq usnifel n usebtar iwakken tiferkit ad tettwazen s usettengel UTF-8, ya s usnifel n usettengel n usebtar s yiman-is ɣer UTF-8 neɣ s tumlin n « accept-charset=utf-8 » deg uferdis tiferkit.