Seeker are not teleport

[romax7]

That is the error i've got when the game start

[BlockHunt] Task #24 for BlockHunt v0.2.1 generated an exception
java.lang.NullPointerException
        at nl.Steffion.BlockHunt.BlockHunt$3.run(BlockHunt.java:726) ~[?:?]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:729) [minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [minecraft_server.jar:git-Spigot-e000104-4cb3258]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]

[EncryptSL]

Your Protocollib and Libs ?