[18:41:46] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'speed' in plugin Essentials v2.16.1.153
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:145) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:706) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1667) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1507) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.h(SourceFile:135) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.h(SourceFile:23) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.p(SourceFile:114) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:876) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.MinecraftServer.p(MinecraftServer.java:869) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.bf(SourceFile:99) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:852) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:793) [spigot.jar:git-Spigot-6dbf995-5fea790]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: java.lang.NullPointerException
        at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:464) ~[?:?]
        at com.earth2me.essentials.Essentials.onCommand(Essentials.java:458) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot.jar:git-Spigot-6dbf995-5fea790]
        ... 17 more