> [23:01:13 INFO]: D3athScythe[0] was slain by SimplyTrash[2]
> [23:01:13 WARN]: Exception in thread "Craft Scheduler Thread - 8"
> [23:01:13 WARN]: org.apache.commons.lang.UnhandledException: Plugin Core v1.0-SNAPSHOT generated an exception while executing task 11
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57)
at org.github.paperspigot.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:23)
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.util.ConcurrentModificationException
at java.util.HashMap.forEach(HashMap.java:1292)
at me.blazingtide.hcf.visualise.claimwall.ClaimWallTask.run(ClaimWallTask.java:61)
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:59)
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
... 4 more