> [04:09:29 WARN]: Exception in thread "Craft Scheduler Thread - 20"
> [04:09:29 WARN]: org.apache.commons.lang.UnhandledException: Plugin KitBattle v4.1 generated an exception while executing task 29535
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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException: Nodes must be provided.
at org.yaml.snakeyaml.nodes.NodeTuple.<init>(NodeTuple.java:28)
at org.yaml.snakeyaml.representer.BaseRepresenter.representMapping(BaseRepresenter.java:163)
at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentMap.representData(SafeRepresenter.java:304)
at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:94)
at org.yaml.snakeyaml.representer.BaseRepresenter.represent(BaseRepresenter.java:64)
at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:242)
at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:206)
at org.yaml.snakeyaml.Yaml.dump(Yaml.java:181)
at org.bukkit.configuration.file.YamlConfiguration.saveToString(YamlConfiguration.java:40)
at org.bukkit.configuration.file.FileConfiguration.save(FileConfiguration.java:103)
at me.wazup.kitbattle.FileManager.saveConfig(FileManager.java:83)
at me.wazup.kitbattle.PlayerData.saveStatsInPlayersFile(PlayerData.java:175)
at me.wazup.kitbattle.PlayerData.saveStatsIntoFile(PlayerData.java:132)
at me.wazup.kitbattle.Kitbattle$6$1.run(Kitbattle.java:1307)
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