[08:46:49 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'is' in plugin SavageSkyblock v2.0.8
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[Spigot.jar:git-Paper-1615]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:152) ~[Spigot.jar:git-Paper-1615]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:685) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1492) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1297) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14) ~[Spigot.jar:git-Paper-1615]
        at java.util.concurrent.Executors$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_12_R1.SystemUtils.a(SourceFile:46) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:850) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[Spigot.jar:git-Paper-1615]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[Spigot.jar:git-Paper-1615]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.NullPointerException
        at net.minecraft.server.v1_12_R1.PacketPlayOutWorldBorder.<init>(PacketPlayOutWorldBorder.java:22) ~[Spigot.jar:git-Paper-1615]
        at net.prosavage.savageskyblock.nms.NMSHandler_v1_12_R1.sendBorder(NMSHandler_v1_12_R1.java:67) ~[?:?]
        at net.prosavage.savageskyblock.SavageSkyBlock.sendIslandBoarder(SavageSkyBlock.java:172) ~[?:?]
        at net.prosavage.savageskyblock.Island.teleportHome(Island.java:138) ~[?:?]
        at net.prosavage.savageskyblock.Command.onCommand(Command.java:47) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[Spigot.jar:git-Paper-1615]
        ... 15 more