2017-03-26 21:42:36 [INFO] FreeStyle issued server command: /chestspawn
2017-03-26 21:42:36 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'chestspawn' in plugin MyCommand v5.1.2
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:193)
	at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServer.java:532)
	at net.minecraft.network.NetServerHandler.func_72566_d(NetServerHandler.java:1405)
	at net.minecraft.network.NetServerHandler.chat(NetServerHandler.java:1269)
	at net.minecraft.network.NetServerHandler.func_72481_a(NetServerHandler.java:1201)
	at net.minecraft.network.packet.Packet3Chat.func_73279_a(Packet3Chat.java:68)
	at net.minecraft.network.packet.Packet3Chat$$EnhancerByCGLIB$$45050965.CGLIB$func_73279_a$4(<generated>)
	at net.minecraft.network.packet.Packet3Chat$$EnhancerByCGLIB$$45050965$$FastClassByCGLIB$$c5e68fc5.invoke(<generated>)
	at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
	at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:135)
	at net.minecraft.network.packet.Packet3Chat$$EnhancerByCGLIB$$45050965.func_73279_a(<generated>)
	at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:480)
	at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:234)
	at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)
	at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(DedicatedServerListenThread.java:37)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:927)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:332)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:782)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:665)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.NoClassDefFoundError: it/mri/mycommand/execute/Randomizator3000
	at it.mri.mycommand.execute.DispatchCommands.ExecuteMyCommandCommands(DispatchCommands.java:158)
	at it.mri.mycommand.commands.CmdCustomCommands.onCommand(CmdCustomCommands.java:101)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 20 more