01.05 12:26:53 [Server] WARN Exception in thread "Craft Scheduler Thread - 52" 01.05 12:26:53 [Server] WARN org.apache.commons.lang.UnhandledException: Plugin SilkSpawners v3.7.2-SNAPSHOT-b335 generated an exception while executing task 330143 01.05 12:26:53 [Server] INFO at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56) 01.05 12:26:53 [Server] INFO at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 01.05 12:26:53 [Server] INFO at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 01.05 12:26:53 [Server] INFO at java.lang.Thread.run(Thread.java:745) 01.05 12:26:53 [Server] INFO Caused by: java.lang.IllegalArgumentException: Progress must be between 0.0 and 1.0 (-0.016666386400673142) 01.05 12:26:53 [Server] INFO at com.google.common.base.Preconditions.checkArgument(Preconditions.java:148) 01.05 12:26:53 [Server] INFO at org.bukkit.craftbukkit.v1_9_R1.boss.CraftBossBar.setProgress(CraftBossBar.java:123) 01.05 12:26:53 [Server] INFO at de.dustplanet.silkspawners.compat.v1_9_R1.NMSHandler$1.run(NMSHandler.java:309) 01.05 12:26:53 [Server] INFO at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftTask.run(CraftTask.java:71) 01.05 12:26:53 [Server] INFO at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53) 01.05 12:26:53 [Server] INFO ... 3 more