java.lang.NullPointerException
        at com.eu.habbo.habbohotel.items.interactions.InteractionPuzzleBox.lambda$onClick$0(InteractionPuzzleBox.java:56)
        at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
        at java.util.Spliterators$ArraySpliterator.forEachRemaining(Unknown Source)
        at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
        at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
        at java.util.stream.ReferencePipeline.reduce(Unknown Source)
        at java.util.stream.ReferencePipeline.min(Unknown Source)
        at com.eu.habbo.habbohotel.items.interactions.InteractionPuzzleBox.onClick(InteractionPuzzleBox.java:57)
        at com.eu.habbo.messages.incoming.rooms.items.ToggleFloorItemEvent.handle(ToggleFloorItemEvent.java:113)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:193)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:40)
        at com.eu.habbo.threading.ThreadPooling$1.run(ThreadPooling.java:45)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Unknown Source)