[06:49:05] [Server thread/ERROR]: Nag author: '[t3hk0d3, zml]' of 'PermissionsEx' about the following: This plugin is not properly shutting down its async tasks when it is being reloaded. This may cause conflicts with the newly loaded version of the plugin [06:49:05] [Server thread/ERROR]: Could not load 'plugins/ArionChat.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.jar:git-Spigot-1649] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:341) ~[spigot.jar:git-Spigot-1649] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:263) [spigot.jar:git-Spigot-1649] at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugins(CraftServer.java:369) [spigot.jar:git-Spigot-1649] at org.bukkit.craftbukkit.v1_7_R4.CraftServer.reload(CraftServer.java:864) [spigot.jar:git-Spigot-1649] at org.bukkit.Bukkit.reload(Bukkit.java:301) [spigot.jar:git-Spigot-1649] at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [spigot.jar:git-Spigot-1649] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [spigot.jar:git-Spigot-1649] at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1043) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:880) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot.jar:git-Spigot-1649] at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1649] Caused by: java.lang.IllegalArgumentException: Plugin already initialized! at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:122) ~[spigot.jar:git-Spigot-1649] at org.bukkit.plugin.java.JavaPlugin.(JavaPlugin.java:66) ~[spigot.jar:git-Spigot-1649] at me.arion.Main.(Main.java:16) ~[?:?] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_03] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) ~[?:1.7.0_03] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.7.0_03] at java.lang.reflect.Constructor.newInstance(Constructor.java:525) ~[?:1.7.0_03] at java.lang.Class.newInstance0(Class.java:372) ~[?:1.7.0_03] at java.lang.Class.newInstance(Class.java:325) ~[?:1.7.0_03] at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:76) ~[spigot.jar:git-Spigot-1649] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[spigot.jar:git-Spigot-1649] ... 19 more Caused by: java.lang.IllegalStateException: Initial initialization at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:125) ~[spigot.jar:git-Spigot-1649] at org.bukkit.plugin.java.JavaPlugin.(JavaPlugin.java:66) ~[spigot.jar:git-Spigot-1649] at me.arion.Main.(Main.java:16) ~[?:?] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_03] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) ~[?:1.7.0_03] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.7.0_03] at java.lang.reflect.Constructor.newInstance(Constructor.java:525) ~[?:1.7.0_03] at java.lang.Class.newInstance0(Class.java:372) ~[?:1.7.0_03] at java.lang.Class.newInstance(Class.java:325) ~[?:1.7.0_03] at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:76) ~[spigot.jar:git-Spigot-1649] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[spigot.jar:git-Spigot-1649]
That happend. ^ I assume you have two classes extending JavaPlugin? or two plugins sharing the same package. Can we see your code? P.S. That may help: https://bukkit.org/threads/pluginalreadyinitialized-exception.214917/ EDIT: Also please surround your code with [cοde][/cοde] tags. and when posting, get the time to explain what has happend and when. The title "ERROR" isnt just enough.