When the lighter was relit, Polpo's Stand, Shadow Sabbath, appeared and attacked. Giorno is able to see through Shadow Sabbath's weakness and faces it alongside Koichi. Koichi realizes that the arrow is involved in this situation and they realize that the point of Polpo's exam is to try to create more Stand users.
The lighter being lit is 
because of something I did.
اشتعال الولّاعة هو بسببِ شيء فعلتُه أنا
Das Feuerzeug wurde aufgrund
meines Handelns entzündet.
La llama volvió a encenderse
por mi culpa.
La llama volvió a encenderse
por mi culpa.
C’est ma faute
si le briquet a été rallumé…
L'accendino è entrato in scena a causa mia.
O isqueiro foi reaceso por culpa minha.
Пламя зажигалки поднялось из-за меня.