NPCLib - NPE on ChunkUnloadEvent

[17:29:04 ERROR]: Could not pass event ChunkUnloadEvent to ArimSK v0.3.10
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[patched.jar:git-PaperSpigot-"4c7641d"]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:517) [patched.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:502) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:379) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:830) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [patched.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [patched.jar:git-PaperSpigot-"4c7641d"]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: java.lang.NullPointerException
        at net.jitse.npclib.listeners.ChunkListener.isSameChunk(ChunkListener.java:97) ~[?:?]
        at net.jitse.npclib.listeners.ChunkListener.onChunkUnload(ChunkListener.java:38) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_211]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_211]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[patched.jar:git-PaperSpigot-"4c7641d"]
        ... 11 more