プレイヤーのインベ内のアイテムの量が出ない

command /shop1-register [<integer>] [<integer>]:
    aliases: /sr
    permission: admin
    trigger:
        if arg-1 is not set:
            send "&c/sr <id> <price>"
        else:
            if arg-2 is not set:
                send "&c/sr <id> <price>"
            else:    
                set {shop1::item::%arg-1%} to type of player's tool
                set {shop1::price::%arg-1%} to arg-2
                send "%{shop1::item::%arg-1%}% %{shop1::price::%arg-1%}%円"

command /shop [<text>]:
    trigger:
        if arg-1 is "1":
            open chest inventory with 6 row named "資源販売" to player
            set {_a} to 10
            set {_i} to 0
            loop 54 times:
                set slot loop-number -1 of player's current inventory to black stained glass pane named ""
            loop 4 times:
                loop 7 times:
                    add 1 to {_i}
                    set slot {_a} of player's current inventory to {shop1::item::%{_i}%} with lore "&7<<< クリック >>>", "&e左: 1個売る" and "&6右: 全て売る" 
                    if {shop1::item::%{_i}%} is not set:
                        set slot {_a} of player's current inventory to air
                    add 1 to {_a}
                add 2 to {_a}
                

on inventory click:
    cancel event
    if name of clicked inventory is "資源販売":
        clicked item is not black stained glass pane
        set {_i} to clicked slot -9
        send "%{shop1::item::%{_i}%}% %{shop1::price::%{_i}%}%円 ID%{_i}% %amount of type of clicked item in player's inventory%個持っている"

command /shop1-register [<integer>] [<integer>]:
    aliases: /sr
    permission: admin
    trigger:
        if arg-1 is not set:
            send "&c/sr <id> <price>"
        else:
            if arg-2 is not set:
                send "&c/sr <id> <price>"
            else:    
                set {shop1::item::%arg-1%} to type of player's tool
                set {shop1::price::%arg-1%} to arg-2
                send "%{shop1::item::%arg-1%}% %{shop1::price::%arg-1%}%円"

command /shop [<text>]:
    trigger:
        if arg-1 is "1":
            open chest inventory with 6 row named "資源販売" to player
            set {_a} to 10
            set {_i} to 0
            loop 54 times:
                set slot loop-number -1 of player's current inventory to black stained glass pane named ""
            loop 4 times:
                loop 7 times:
                    add 1 to {_i}
                    set slot {_a} of player's current inventory to {shop1::item::%{_i}%} with lore "&7<<< クリック >>>", "&e左: 1個売る" and "&6右: 全て売る" 
                    if {shop1::item::%{_i}%} is not set:
                        set slot {_a} of player's current inventory to air
                    add 1 to {_a}
                add 2 to {_a}
                

on inventory click:
    cancel event
    if name of clicked inventory is "資源販売":
        clicked item is not black stained glass pane
        set {_i} to clicked slot -9
        send "%{shop1::item::%{_i}%}% %{shop1::price::%{_i}%}%円 ID%{_i}% %amount of type of clicked item in player's inventory%個持っている"