spawner

[21:56:02 ERROR]: Could not pass event ChunkLoadEvent to ApeironSpawner v1.0
java.lang.NullPointerException: null
        at gyurix.apeironspawner.ApeironSpawner.loadChunk(ApeironSpawner.java:91) ~[?:?]
        at gyurix.apeironspawner.ApeironSpawner.onChunkLoad(ApeironSpawner.java:142) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor828.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:67) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at org.bukkit.plugin.EventExecutor$$Lambda$1878.000000006D027010.execute(Unknown Source) ~[?:?]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:514) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.Chunk.addEntities(Chunk.java:981) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider$PendingChunk.postChunk(PaperAsyncChunkProvider.java:535) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider$PendingChunk$$Lambda$2140.00000000E80318F0.run(Unknown Source) ~[?:?]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:116) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:110) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:105) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:98) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1013) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:938) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:836) ~[patched_1.13.2.jar:git-Paper-"988887d2"]
        at java.lang.Thread.run(Thread.java:813) [?:1.8.0_202]