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java.lang.NullPointerException: 	at me.NoChance.PvPManager.Managers.PlayerHandler.addUser(PlayerHandler.java:104)	at me.NoChance.PvPManager.Managers.PlayerHandler.get(PlayerHandler.java:97)	at me.NoChance.PvPManager.Listeners.PlayerListener.onPlayerTeleport(PlayerListener.java:209)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)	at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.teleport(CraftPlayer.java:444)	at org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity.teleport(CraftEntity.java:226)	at me.marvin.utils.utils_config.warpPlayer(utils_config.java:52)	at me.marvin.listener.listener_online.PlayerJoin(listener_online.java:23)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)	at net.minecraft.server.v1_8_R3.PlayerList.onPlayerJoin(PlayerList.java:298)	at net.minecraft.server.v1_8_R3.PlayerList.a(PlayerList.java:157)	at net.minecraft.server.v1_8_R3.LoginListener.b(LoginListener.java:144)	at net.minecraft.server.v1_8_R3.LoginListener.c(LoginListener.java:54)	at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:231)	at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:148)	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814)	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)	at java.lang.Thread.run(Thread.java:745)