on inventory click:

    if name of current inventory is "&b상점_식료품":

        cancel event

        if clicked item is not air:

            set {_lore} to uncolored line 1 of lore of clicked item

            replace all "판매 가격: " and "미르" with "" in {_lore}

            set {_lore} to {_lore} parsed as integer

            if {%player.돈} is smaller than {_lore}:

                message "&c돈이 부족해 해당 아이템을 구매할 수 없습니다."

                play sound "entity.experience_orb.pickup" with volume 0.5 to the player

            else:

                set {_item} to clicked item

                delete lore of {_item}

                give {_item} to player

                subtract {_lore} from {%player%.돈}

                play sound "UI_BUTTON_CLICK" with volume 0.5 to the player

여기서 if clicked item is not air: 구문이 오류가 납니다.

어떡하죠..?