Bukkit

MultiWorld I started spamming error log:

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WARN]: Exception in thread "Craft Scheduler Thread - 22"
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;
at multiworld.metrics.Metrics.postPlugin(Metrics.java:372)
at multiworld.metrics.Metrics.access$400(Metrics.java:56)
at multiworld.metrics.Metrics$1.run(Metrics.java:238)
at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftTask.run(CraftTask.java:71)
at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
... 3 more

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Server API:

This server is running CraftBukkit version git-Spigot-f6feaaa-3dc138d (MC: 1.9.2) (Implementing API version 1.9.2-R0.1-SNAPSHOT)

Please repair.