> [01:10:33 INFO]: coolthonix issued server command: /staff
> [01:10:33 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing 'staff' in net.shortninja.staffplus.server.command.cmd.mode.ModeCmd(staff)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:150) ~[server.jar:FluxSpigot-04511af6]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:619) ~[server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1194) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1006) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:FluxSpigot-04511af6]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_212]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:776) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:715) [server.jar:FluxSpigot-04511af6]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:618) [server.jar:FluxSpigot-04511af6]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.NullPointerException
at net.shortninja.staffplus.player.attribute.mode.ModeCoordinator.addMode(ModeCoordinator.java:59) ~[?:?]
at net.shortninja.staffplus.server.command.cmd.mode.ModeCmd.toggleMode(ModeCmd.java:58) ~[?:?]
at net.shortninja.staffplus.server.command.cmd.mode.ModeCmd.execute(ModeCmd.java:49) ~[?:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:143) ~[server.jar:FluxSpigot-04511af6]
... 14 more