[15:03:39] [Server thread/WARN]: Couldn't look up profile properties for com.mojang.authlib.GameProfile@1d0c458c[id=6833a1c9-95a5-4c79-bc1f-45341ec0ff40,name=<null>,properties={textures=[com.mojang.authlib.properties.Property@5b275b83]},legacy=false]
com.mojang.authlib.exceptions.AuthenticationException: The client has sent too many requests within a certain amount of time
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:79) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:180) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:173) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_72]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_72]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_72]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_72]
	at com.guillaumevdn.gcore.lib.npc.MojangsterAPI.getSkinPropandName(MojangsterAPI.java:117) ~[?:?]
	at com.guillaumevdn.gcore.lib.npc.SkinData.refresh(SkinData.java:47) ~[?:?]
	at com.guillaumevdn.gcore.lib.npc.SkinData.<init>(SkinData.java:24) ~[?:?]
	at com.guillaumevdn.gcore.lib.npc.NpcManager.loadSkinLater(NpcManager.java:80) ~[?:?]
	at com.guillaumevdn.questcreator.module.ModuleManager.reloadConfig(ModuleManager.java:322) ~[?:?]
	at com.guillaumevdn.questcreator.QuestCreator.innerReload(QuestCreator.java:507) ~[?:?]
	at com.guillaumevdn.gcore.lib.GPlugin.reload(GPlugin.java:369) ~[?:?]
	at com.guillaumevdn.gcore.lib.GPlugin$1.perform(GPlugin.java:165) ~[?:?]
	at com.guillaumevdn.gcore.lib.command.CommandArgument.call(CommandArgument.java:215) ~[?:?]
	at com.guillaumevdn.gcore.lib.command.CommandArgument.call(CommandArgument.java:184) ~[?:?]
	at com.guillaumevdn.gcore.lib.command.CommandRoot.onCommand(CommandRoot.java:52) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:139) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at org.bukkit.craftbukkit.v1_13_R2.CraftServer.dispatchCommand(CraftServer.java:704) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.PlayerConnection.handleCommand(PlayerConnection.java:1636) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1476) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:9) ~[spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_72]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_72]
	at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:896) [spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [spigot-1.13.2.jar:git-Spigot-3cb9dcb-77ca7ca]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]