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.
Fom acel kicwalo i %S yo me boc ma pe romo boyo Nyig coc weny, dong gin ma iketo romo bale woko. Pi gengo peko man, myero ki lok pot buk man wek ocwal fom i UTF-8 kun cwalo ci loko cwalo pot buk pire kene i UTF-8 onyo ki poko yo me ye-charset=utf-8 ikom jami me waraga.