[08:31:31] [Server thread/WARN]: [MobStacker] Task #190517 for MobStacker v1.4 generated an exception
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:653) ~[?:1.8.0_65]
	at java.util.ArrayList.get(ArrayList.java:429) ~[?:1.8.0_65]
	at java.util.Collections$UnmodifiableList.get(Collections.java:1309) ~[?:1.8.0_65]
	at com.kiwifisher.mobstacker.StackUtils.stackEntities(StackUtils.java:106) ~[?:?]
	at com.kiwifisher.mobstacker.StackUtils$1.run(StackUtils.java:48) ~[?:?]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[sv.jar:git-Spigot-5f38d38-18fbb24]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [sv.jar:git-Spigot-5f38d38-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) [sv.jar:git-Spigot-5f38d38-18fbb24]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [sv.jar:git-Spigot-5f38d38-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [sv.jar:git-Spigot-5f38d38-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [sv.jar:git-Spigot-5f38d38-18fbb24]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_65]