Helpfulmobs error

[03:05:28 WARN]: Exception in thread "Craft Scheduler Thread - 65"
[03:05:28 WARN]: org.apache.commons.lang.UnhandledException: Plugin HelpfulMobs v2.8.2 generated an exception while executing task 546
        at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
        at me.kyledag500.VillagerWarp.Management$3.run(Management.java:200)
        at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71)
        at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
        ... 3 more