Minecraft Server Konsole LWC und ChestShop machen Probleme Lösung?

Habe hier einige Prtobleme mit den beiden Plugins und weiss sie nicht zu lösen. Hier die Logs.

[18:32:16 WARN]: [LWC] Plugin LWC v4.4.0 (b881) (July 11, 2013) generated an exception while executing task 4938

java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;

at com.griefcraft.util.Metrics.postPlugin(Metrics.java:335) ~[?:?]

at com.griefcraft.util.Metrics.access$400(Metrics.java:57) ~[?:?]

at com.griefcraft.util.Metrics$1.run(Metrics.java:223) ~[?:?]

at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-server.jar:git-Spigot-7754231-9a1f5ee]

at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [spigot-server.jar:git-Spigot-7754231-9a1f5ee]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]

at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]

>[18:32:16 WARN]: [ChestShop] Plugin ChestShop v3.8.12 generated an exception while executing task 5069

java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()[Lorg/bukkit/entity/Player;

at com.Acrobot.ChestShop.Metrics.postPlugin(Metrics.java:335) ~[?:?]

at com.Acrobot.ChestShop.Metrics.access$400(Metrics.java:57) ~[?:?]

at com.Acrobot.ChestShop.Metrics$1.run(Metrics.java:223) ~[?:?]

at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-server.jar:git-Spigot-7754231-9a1f5ee]

at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [spigot-server.jar:git-Spigot-7754231-9a1f5ee]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]

at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]

Server, Minecraft, Plug-in, Spigot, LWC, Chestshop
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