[19:37:30] [Server thread/INFO]: Starting minecraft server version 1.12.2
[19:37:30] [Server thread/INFO]: Loading properties
[19:37:30] [Server thread/INFO]: Default game type: SURVIVAL
[19:37:30] [Server thread/INFO]: This server is running CraftBukkit version git-Spigot-7754231-94b0980 (MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT)
[19:37:30] [Server thread/INFO]: Debug logging is disabled
[19:37:30] [Server thread/INFO]: Server Ping Player Sample Count: 12
[19:37:30] [Server thread/INFO]: Using 4 threads for Netty based IO
[19:37:30] [Server thread/INFO]: Generating keypair
[19:37:30] [Server thread/INFO]: Starting Minecraft server on *:25567
[19:37:30] [Server thread/INFO]: Set PluginClassLoader as parallel capable
[19:37:32] [Server thread/INFO]: [ReflectionHelper] Version is v1_12_R1 (11201)
[19:37:32] [Server thread/WARN]: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
[19:37:32] [Server thread/WARN]: SLF4J: Defaulting to no-operation (NOP) logger implementation
[19:37:32] [Server thread/WARN]: SLF4J: See
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[19:37:33] [Server thread/ERROR]: Could not load 'plugins\[SX]Sx-compute-v1.0.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: Plugin already initialized!
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:326) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:248) [spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.loadPlugins(CraftServer.java:308) [spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:205) [spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545) [spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_101]
Caused by: java.lang.IllegalArgumentException: Plugin already initialized!
at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:122) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:60) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at com.github.letheland.main.<init>(main.java:23) ~[?:?]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_101]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_101]
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_101]
at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_101]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:76) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
... 6 more
Caused by: java.lang.IllegalStateException: Initial initialization
at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:125) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:60) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at com.github.letheland.main.<init>(main.java:23) ~[?:?]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_101]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_101]
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_101]
at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_101]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:76) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[spigot-1.12.2.jar:git-Spigot-7754231-94b0980]
... 6 more