이 구문에서 if fishing state is CAUGHT_FISH 구문이 이해를 할수 없다 뜨는데 왜 이런가요?

options:

    system: &b[&f System &b]

command /낚시세팅:

    trigger:

        open chest with 6 rows named "&f[ &a낚시 세팅 &f]" to player 

        loop 54 times:

            set slot (loop-number)-1 of current inventory of player to {item::%loop-number%}

        stop

on inventory close:

    if inventory name of current inventory of player is "&f[ &a낚시 세팅 &f]":

        delete {item::*}

        loop 54 times:

            if slot (loop-number)-1 of current inventory of player is not empty:

                add name of slot (loop-number)-1 of current inventory of player to {item::*}

        message "{@system} &f아이템 [내용물]이 설정되었습니다."

        stop

on fishing:

    if fishing state is CAUGHT_FISH:

        delete caught fishing

        set {_random} to random integer between 0.1 and size of {item::}

        loop {item::}:

            if loop-index is "%{_random}%":

                drop loop-vaule

                send title "&a%loop-vaule를 낚으셨습니다" to player for 2 seconds