[15:44:56] [pool-3-thread-50/WARN]: Exception in thread "pool-3-thread-50"
[15:44:56] [pool-3-thread-50/WARN]: org.apache.commons.lang.UnhandledException: Plugin CommandSigns v1.9.3.1 generated an exception while executing task 54
	at org.bukkit.craftbukkit.v1_7_R3.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.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
	at org.zonedabone.commandsigns.thirdparty.Metrics.postPlugin(Metrics.java:488)
	at org.zonedabone.commandsigns.thirdparty.Metrics.access$400(Metrics.java:71)
	at org.zonedabone.commandsigns.thirdparty.Metrics$1.run(Metrics.java:641)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:53)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	... 3 more