[17:28:21] [Server thread/INFO]: SBOfficial issued server command: /sentry guard SBOfficial [17:28:21] [Server thread/ERROR]: null org.bukkit.command.CommandException: Unhandled exception executing command 'sentry' in plugin Sentry v1.9.0 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at org.bukkit.craftbukkit.v1_9_R1.CraftServer.dispatchCommand(CraftServer.java:645) ~[spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.PlayerConnection.handleCommand(PlayerConnection.java:1350) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:1185) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_60] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_60] at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_60] Caused by: java.lang.NullPointerException at net.aufdemrand.sentry.SentryInstance.setGuardTarget(SentryInstance.java:1599) ~[?:?] at net.aufdemrand.sentry.Sentry.onCommand(Sentry.java:788) ~[?:?] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.9.2.jar:git-Spigot-a1b8bf3-f326992] ... 15 more