Crates Plus/Per World Plugins Error

[11:59:43 ERROR]: **** THIS IS NOT AN ISSUE TO DO WITH PER WORLD PLUGINS ****
Could not pass event BlockPlaceEvent to CratesPlus v4.1.0
org.bukkit.event.EventException
        at me.incomprehendable.dev.pwp.transparentlisteners.PerWorldPluginLoader$1.execute(PerWorldPluginLoader.java:118) ~[?:?]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at me.incomprehendable.dev.pwp.transparentlisteners.PWPRegisteredListener.callEvent(PWPRegisteredListener.java:28) [PerWorldPlugins.jar:?]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callBlockPlaceEvent(CraftEventFactory.java:126) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.ItemStack.placeItem(ItemStack.java:158) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.PlayerInteractManager.interact(PlayerInteractManager.java:503) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:759) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_72]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_72]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:714) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:653) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:556) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]
Caused by: java.lang.NullPointerException
        at plus.crates.Crate.loadHolograms(Crate.java:226) ~[?:?]
        at plus.crates.Listeners.BlockListeners.onBlockPlace(BlockListeners.java:237) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor162.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_72]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_72]
        at me.incomprehendable.dev.pwp.transparentlisteners.PerWorldPluginLoader$1.execute(PerWorldPluginLoader.java:116) ~[?:?]
        ... 19 more