sudden death

hey all my baby pacman frog just passed away, was wondering why. When i first got it, he was eating everyday, had great appetite but after I left to another country for 4 days and had my uncle to help me feed him, came back and he didn’t eat anymore. my uncle told me he fed him on friday but the next day he didn’t want to eat until for a week and just passed away today. Below is a pic of his stomach when he died. anyone knows why?

hey all my baby pacman frog just passed away, was wondering why. When i first got it, he was eating everyday, had great appetite but after I left to another country for 4 days and had my uncle to help me feed him, came back and he didn’t eat anymore. my uncle told me he fed him on friday but the next day he didn’t want to eat until for a week and just passed away today. Below is a pic of his stomach when he died. anyone knows why?