help

[HiginoFernando]

[20:00:18] [Server thread/INFO] [PowerNBT]: Enabling PowerNBT v0.8.9.2
[20:00:18] [Server thread/ERROR] [Minecraft]: Error occurred while enabling PowerNBT v0.8.9.2 (Is it up to date?)
java.lang.NoClassDefFoundError: mt
at java.lang.Class.getDeclaredMethods0(Native Method) ~[?:1.8.0_312]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[?:1.8.0_312]
at java.lang.Class.privateGetPublicMethods(Class.java:2902) ~[?:1.8.0_312]
at java.lang.Class.privateGetPublicMethods(Class.java:2911) ~[?:1.8.0_312]
at java.lang.Class.getMethods(Class.java:1615) ~[?:1.8.0_312]
at me.dpohvar.powernbt.utils.ReflectionUtils$RefClass.findMethodByReturnType(ReflectionUtils.java:357) ~[?:?]
at me.dpohvar.powernbt.utils.ReflectionUtils$RefClass.findMethodByReturnType(ReflectionUtils.java:330) ~[?:?]
at me.dpohvar.powernbt.utils.EntityUtils.(EntityUtils.java:46) ~[?:?]
at me.dpohvar.powernbt.utils.EntityUtils.(EntityUtils.java:20) ~[?:?]
at me.dpohvar.powernbt.PowerNBT.initializeUtils(PowerNBT.java:133) ~[?:?]
at me.dpohvar.powernbt.PowerNBT.onEnable(PowerNBT.java:125) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[JavaPlugin.class:1.7.10-staging-0c25d250]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:362) [JavaPluginLoader.class:1.7.10-staging-0c25d250]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:411) [SimplePluginManager.class:1.7.10-staging-0c25d250]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:408) [CraftServer.class:1.7.10-staging-0c25d250]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:342) [CraftServer.class:1.7.10-staging-0c25d250]
at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:516) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:490) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:450) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:367) [lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:644) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]

[Freemandns]

Hello, what version of Minecraft is your game server using?

Russian (Русский)

Здравствуйте! Какую версию Minecraft использует ваш игровой сервер?