Help me look, I have the RandomCoords plugin and it works perfectly in my skyblock, but when it comes to using it in the End it does not work, it crashes (I do not have it in the Banned worlds) it jumps directly and says this:

09.08 00:01:28 [Server] ERROR null
09.08 00:01:28 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'rtp' in plugin RandomCoords v0.6.2-RELEASE
09.08 00:01:28 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:646) ~[spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.PlayerConnection.handleCommand(PlayerConnection.java:1133) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.PlayerConnection.a(PlayerConnection.java:968) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.PlayerConnectionUtils$1.run(SourceFile:13) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_181]
09.08 00:01:28 [Server] INFO at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_181]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.SystemUtils.a(SourceFile:60) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:710) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
09.08 00:01:28 [Server] INFO Caused by: java.lang.NoSuchFieldError: END_BRICKS
09.08 00:01:28 [Server] INFO at com.jolbol1.RandomCoordinates.checks.End.endCoord(End.java:56) ~[?:?]
09.08 00:01:28 [Server] INFO at com.jolbol1.RandomCoordinates.managers.CoordinatesManager.randomlyTeleportPlayer(CoordinatesManager.java:376) ~[?:?]
09.08 00:01:28 [Server] INFO at com.jolbol1.RandomCoordinates.commands.RandomCommand.onCommand(RandomCommand.java:67) ~[?:?]
09.08 00:01:28 [Server] INFO at com.jolbol1.RandomCoordinates.commands.handler.CommandHandler.onCommand(CommandHandler.java:79) ~[?:?]
09.08 00:01:28 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot1.8.jar:git-Spigot-dbe012b-61ef214]
09.08 00:01:28 [Server] INFO ... 15 more

It is urgent please help me