Limit koxów refilów i pereł

Hej, mam mały kłopot z jednym skryptem. Jest to skrypt na limit koxów, refilów i pereł. Wszystko działa ok, tylko koxy zamieniają mi się w refile :/. O to kod:

on pick up:
    wait 0.1 second
    if amount of 322:1 in player's inventory is greater than 4:
        set {_kox} to amount of 322:1 in player's inventory
        set {_koxy} to {_kox}-4
        set {_add} to "%{_koxy}% 322:1"
        add "%{_add}%" parsed as item to player's enderchest
        remove all 322:1 from player's inventory
        add 4 322:1 to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc koxow w twoim ekwipunku. Zostawiono 4, reszte odlozono do twojego enderchestu."

    if amount of 322 in player's inventory is greater than 10:
        set {_amount} to amount of 322 in player's inventory
        set {_amountend} to {_amount}-10
        set {_add} to "%{_amountend}% 322"
        add "%{_add}%" parsed as item to player's enderchest
        remove all 322 from player's inventory
        add 10 322 to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc refilow w twoim ekwipunku. Zostawiono 10, reszte odlozono do twojego enderchestu."

    if amount of ender pearl in player's inventory is greater than 5:
        set {_perla} to amount of ender pearl in player's inventory
        set {_perelki} to {_perla}-5
        set {_add} to "%{_perelki}% ender pearl"
        add "%{_add}%" parsed as item to player's enderchest
        remove all ender pearl from player's inventory
        add 5 ender pearl to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc ender perel w twoim ekwipunku. Zostawiono 10, reszte odlozono do twojego enderchestu."
        stop

on inventory close:
    if amount of 322:1 in player's inventory is greater than 4:
        set {_kox} to amount of 322:1 in player's inventory
        set {_koxy} to {_kox}-4
        set {_add} to "%{_koxy}% 322:1"
        add "%{_add}%" parsed as item to player's enderchest
        remove all 322:1 from player's inventory
        add 4 322:1 to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc koxow w twoim ekwipunku. Zostawiono 4, reszte odlozono do twojego enderchestu."

    if amount of 322 in player's inventory is greater than 10:
        set {_amount} to amount of 322 in player's inventory
        set {_amountend} to {_amount}-10
        set {_add} to "%{_amountend}% 322"
        add "%{_add}%" parsed as item to player's enderchest
        remove all 322 from player's inventory
        add 10 322 to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc refow w twoim ekwipunku. Zostawiono 10, reszte odlozono do twojego enderchestu."        
                       
    if amount of ender pearl in player's inventory is greater than 5:
        set {_perla} to amount of ender pearl in player's inventory
        set {_perelki} to {_perla}-5
        set {_add} to "%{_perelki}% ender pearl"
        add "%{_add}%" parsed as item to player's enderchest
        remove all ender pearl from player's inventory
        add 5 ender pearl to player's inventory
        message "&c&lOsiagnieto maksymalna ilosc ender perel w twoim ekwipunku. Zostawiono 5, reszte odlozono do twojego enderchestu."
        stop