[22:20:56] [Server thread/INFO]: Spectrumization issued server command: /alias
[22:20:56] [Server thread/ERROR]: Could not pass event PlayerCommandPreprocessEvent to CommandAliases v1.0
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1389) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1232) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_171]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_171]
	at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
Caused by: java.lang.NullPointerException
	at me.spectrum.ca.Listeners.onCommandPreProcess(Listeners.java:18) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_171]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_171]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_171]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[minecraft_server.jar:git-Spigot-2086bb0-2f3ed3b]
	... 16 more