[16:33:16 WARN]: [Slenderman] Task #354 for Slenderman v1.0 generated an exception
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.rangeCheck(Unknown Source) ~[?:1.8.0_211]
        at java.util.ArrayList.get(Unknown Source) ~[?:1.8.0_211]
        at eu.iamgio.slenderman.character.SlendermanEntity.moveArms(SlendermanEntity.java:127) ~[?:?]
        at eu.iamgio.slenderman.character.SlendermanMovement.lambda$init$0(SlendermanMovement.java:54) ~[?:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-596221b-9a1fc1e]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:353) [spigot.jar:git-Spigot-596221b-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:738) [spigot.jar:git-Spigot-596221b-9a1fc1e]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405) [spigot.jar:git-Spigot-596221b-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678) [spigot.jar:git-Spigot-596221b-9a1fc1e]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576) [spigot.jar:git-Spigot-596221b-9a1fc1e]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]