[14:45:16 ERROR]: Could not pass event CreatureSpawnEvent to MythicMobs v4.9.0-SNAPSHOT-3197
java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
    at jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64) ~[?:?]
    at jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70) ~[?:?]
    at jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248) ~[?:?]
    at java.util.Objects.checkIndex(Objects.java:372) ~[?:?]
    at java.util.ArrayList.get(ArrayList.java:458) ~[?:?]
    at io.lumine.xikage.mythicmobs.adapters.bukkit.listeners.MobListeners.MobSpawnEvent(MobListeners.java:120) ~[?:?]
    at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor896.execute(Unknown Source) ~[?:?]
    at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.15.1.jar:git-Paper-60]
    at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.15.1.jar:git-Paper-60]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.15.1.jar:git-Paper-60]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:545) ~[patched_1.15.1.jar:git-Paper-60]
    at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.callCreatureSpawnEvent(CraftEventFactory.java:626) ~[patched_1.15.1.jar:git-Paper-60]
    at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.doEntityAddEventCalling(CraftEventFactory.java:547) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.WorldServer.addEntity0(WorldServer.java:1178) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.WorldServer.addEntity(WorldServer.java:1086) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.EntitySpider.prepare(EntitySpider.java:128) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.SpawnerCreature.spawnMobs(SpawnerCreature.java:121) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.ChunkProviderServer.lambda$tickChunks$7(ChunkProviderServer.java:651) ~[patched_1.15.1.jar:git-Paper-60]
    at it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap$1.forEach(Long2ObjectLinkedOpenHashMap.java:1661) ~[patched_1.15.1.jar:git-Paper-60]
    at com.google.common.collect.Iterables$UnmodifiableIterable.forEach(Iterables.java:105) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.ChunkProviderServer.tickChunks(ChunkProviderServer.java:577) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.ChunkProviderServer.tick(ChunkProviderServer.java:529) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.WorldServer.doTick(WorldServer.java:406) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1239) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:417) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1106) ~[patched_1.15.1.jar:git-Paper-60]
    at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:933) ~[patched_1.15.1.jar:git-Paper-60]
    at java.lang.Thread.run(Thread.java:834) [?:?]