When ever I use the /lightning command on my server I get this error in console

[12:17:40 ERROR]: Command lightning failed:
java.lang.NoSuchMethodError: org.bukkit.entity.Player.getTargetBlock(Ljava/util/HashSet;I)Lorg/bukkit/block/Block;
at com.earth2me.essentials.commands.Commandlightning.run(Commandlightning.java:29) ~[EssentialsX-2.0.1.jar:?]
at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:162) ~[EssentialsX-2.0.1.jar:?]
at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:157) ~[EssentialsX-2.0.1.jar:?]
at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:514) [EssentialsX-2.0.1.jar:?]
at com.earth2me.essentials.Essentials.onCommand(Essentials.java:424) [EssentialsX-2.0.1.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:651) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1392) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1227) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_112]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_112]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-5695bca-53fccdf]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]

Thank you