Помогите Помогите с ошибкой в плагине, в чем проблема?

[10:04:06] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'horse' in plugin JateHorse v1.0.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[PaperSpigot.jar:git-Paper-1562]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:151) ~[PaperSpigot.jar:git-Paper-1562]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:685) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1476) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1281) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14) ~[PaperSpigot.jar:git-Paper-1562]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_241]
at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_241]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:850) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[PaperSpigot.jar:git-Paper-1562]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[PaperSpigot.jar:git-Paper-1562]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
Caused by: java.lang.Error: Unresolved compilation problem:

at jc.jatecraft.jatehorse.JateHorseUtil.spawnHourse(JateHorseUtil.java:15) ~[?:?]
at jc.jatecraft.jatehorse.JateHorseCommand.onCommand(JateHorseCommand.java:25) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PaperSpigot.jar:git-Paper-1562]
... 15 more