itemcharges: ArrayIndexOutOfBoundsException

[Owain94]

java.lang.ArrayIndexOutOfBoundsException: Index 12 out of bounds for length 12
    at net.runelite.client.plugins.itemcharges.ItemChargePlugin.onGameTick(ItemChargePlugin.java:567)
    at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:63)
    at io.reactivex.internal.operators.observable.ObservableMap$MapObserver.onNext(ObservableMap.java:62)
    at io.reactivex.internal.operators.observable.ObservableFilter$FilterObserver.onNext(ObservableFilter.java:52)
    at com.jakewharton.rxrelay2.PublishRelay$PublishDisposable.onNext(PublishRelay.java:180)
    at com.jakewharton.rxrelay2.PublishRelay.accept(PublishRelay.java:145)
    at com.jakewharton.rxrelay2.SerializedRelay.accept(SerializedRelay.java:57)
    at net.runelite.client.eventbus.EventBus.post(EventBus.java:102)
    at net.runelite.client.callback.Hooks.clientMainLoop(Hooks.java:179)
    at client.draw(client.java:1490)
    at client.au(client.java)
    at bg.am(bg.java:381)
    at bg.run(bg.java:335)
    at java.lang.Thread.run