Actually Additions Spectator Bug

[04:22:59] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Invalid size: 0
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_111]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_111]
	at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:668) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387) [ld.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.IllegalArgumentException: Invalid size: 0
	at com.google.common.base.Preconditions.checkArgument(Preconditions.java:148) ~[minecraft-1.10.2.jar:?]
	at org.spongepowered.common.item.inventory.lens.impl.AbstractLens.<init>(AbstractLens.java:89) ~[AbstractLens.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.AbstractLens.<init>(AbstractLens.java:84) ~[AbstractLens.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.MinecraftLens.<init>(MinecraftLens.java:48) ~[MinecraftLens.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.comp.OrderedInventoryLensImpl.<init>(OrderedInventoryLensImpl.java:58) ~[OrderedInventoryLensImpl.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.comp.Inventory2DLensImpl.<init>(Inventory2DLensImpl.java:63) ~[Inventory2DLensImpl.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.comp.GridInventoryLensImpl.<init>(GridInventoryLensImpl.java:69) ~[GridInventoryLensImpl.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.comp.GridInventoryLensImpl.<init>(GridInventoryLensImpl.java:57) ~[GridInventoryLensImpl.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.minecraft.ContainerChestInventoryLens.init(ContainerChestInventoryLens.java:61) ~[ContainerChestInventoryLens.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.lens.impl.minecraft.ContainerChestInventoryLens.<init>(ContainerChestInventoryLens.java:50) ~[ContainerChestInventoryLens.class:1.10.2-2202-5.1.0-BETA-2078]
	at org.spongepowered.common.item.inventory.util.ContainerUtil.getLens(ContainerUtil.java:209) ~[ContainerUtil.class:1.10.2-2202-5.1.0-BETA-2078]
	at net.minecraft.inventory.Container.init(Container.java:1415) ~[abd.class:?]
	at net.minecraft.inventory.Container.detectAndSendChanges(Container.java:1473) ~[abd.class:?]
	at net.minecraft.inventory.Container.func_75142_b(Container.java:1467) ~[abd.class:?]
	at net.minecraft.inventory.Container.func_75132_a(Container.java:1454) ~[abd.class:?]
	at net.minecraft.entity.player.EntityPlayerMP.func_71007_a(EntityPlayerMP.java:802) ~[lu.class:?]
	at net.minecraft.server.management.PlayerInteractionManager.func_187251_a(PlayerInteractionManager.java:1172) ~[lv.class:?]
	at net.minecraft.network.NetHandlerPlayServer.redirect$onProcessRightClickBlock$zha000(NetHandlerPlayServer.java:2275) ~[me.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_184337_a(NetHandlerPlayServer.java:679) ~[me.class:?]
	at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:55) ~[jj.class:?]
	at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:11) ~[jj.class:?]
	at org.spongepowered.common.network.PacketUtil.onProcessPacket(PacketUtil.java:156) ~[PacketUtil.class:1.10.2-2202-5.1.0-BETA-2078]
	at net.minecraft.network.PacketThreadUtil$1.redirect$onProcessPacket$zjd000(SourceFile:539) ~[fl$1.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[fl$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_111]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_111]
	at net.minecraft.util.Util.func_181617_a(SourceFile:45) ~[h.class:?]
	... 5 more