[17:57:31 WARN]: Exception in thread "Craft Scheduler Thread - 5"
[17:57:31 WARN]: org.apache.commons.lang.UnhandledException: Plugin Autorank v3.8.5.1 generated an exception while executing task 37
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
        at me.armar.plugins.autorank.rankbuilder.ChangeGroupBuilder.initSimpleConfig(ChangeGroupBuilder.java:96)
        at me.armar.plugins.autorank.rankbuilder.ChangeGroupBuilder.initialiseChangeGroups(ChangeGroupBuilder.java:50)
        at me.armar.plugins.autorank.rankbuilder.ChangeGroupManager.initialiseFromConfigs(ChangeGroupManager.java:49)
        at me.armar.plugins.autorank.Autorank$2.run(Autorank.java:337)
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71)
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
        ... 3 more