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java.lang.NullPointerException: 	at me.woulfiee.server.ban.BanCommand.isBanned(BanCommand.java:47)	at me.woulfiee.server.ban.BanCommand.onPlayerLogin(BanCommand.java:103)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300)	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501)	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486)	at net.minecraft.server.v1_8_R3.PlayerList.attemptLogin(PlayerList.java:439)	at net.minecraft.server.v1_8_R3.LoginListener.b(LoginListener.java:89)	at net.minecraft.server.v1_8_R3.LoginListener.c(LoginListener.java:53)	at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:222)	at net.minecraft.server.v1_8_R3.ServerConnection.c(SourceFile:168)	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:744)	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335)	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:628)	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:536)	at java.lang.Thread.run(Unknown Source)