2019-08-21 04:37:11 [Client] ERROR n.runelite.client.eventbus.EventBus - java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextNode(Unknown Source)
    at java.util.HashMap$KeyIterator.next(Unknown Source)
    at net.runelite.client.menus.MenuManager.indexPriorityEntries(MenuManager.java:816)
    at net.runelite.client.menus.MenuManager.rebuildLeftClickMenu(MenuManager.java:304)
    at net.runelite.client.menus.MenuManager.onBeforeRender(MenuManager.java:280)
    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:81)
    at net.runelite.client.callback.Hooks.clientMainLoop(Hooks.java:183)
    at client.draw(client.java:1440)
    at client.ag(client.java)
    at bz.s(bz.java:390)
    at bz.run(bz.java:344)
    at java.lang.Thread.run(Unknown Source)