Pomoc w skrypcie na /itemy [GUI]

Cześć!
Napisałem skrypt na itemy na gildię w GUI, ale wywala mi error i nie wiem o co chodzi, proszę o pomoc!

SKRIPT:

command /itemy [<text>]:
    trigger:
        open chest with 3 rows named "&c&lITEMY NA GILDIE" to player
        set {_i} to 0
        loop 10 times:
            format slot {_i} of player with black glass pane named " " to be unstealable
            add 1 to {_i}
        set {_i) to 17
        loop 10 times:
            format slot (_i} of player with black glass pane named " " to be unstealable
            add 1 to {_i}
           #10-16
           format slot 10 of player with enchanted golden apple named "&6&lKOXY" with lore "&cPotrzebujesz: &764" to be unstealable
           format slot 11 of player with 57 named "&6&lBLOKI DIAMNTU" with lore "&cPotrzebujesz: &764" to be unstealable
           format slot 12 of player with 41 named "&6&lBLOKI ZLOTA" with lore "&cPotrzebujesz: &764" to be unstealable
           format slot 13 of player with 133 named "&6&lBLOKI SZMARAGDOW" with lore "&cPotrzebujesz: &764" to be unstealable
           format slot 14 of player with bookshelf named "&6&lBIBLIOTECZKI" with lore "&cPotrzebujesz: &764" to be unstealable
           format slot 15 of player with 174 named "&6&lLOD" with lore "&cPotrzebujesz: &78" to be unstealable
           format slot 16 of player with 368 named "&6&lPERLY" with lore "&cPotrzebujesz: &716" to be unstealable
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