radar error

[10:37:36] [Craft Scheduler Thread - 25/WARN]: org.apache.commons.lang.UnhandledException: Plugin NoxRadarJammer v1.3.4 Beta generated an exception while executing task 6160
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: net.minecraft.util.com.mojang.authlib.GameProfile.getId()Ljava/lang/String;
	at com.comphenix.protocol.wrappers.WrappedGameProfile.getId(WrappedGameProfile.java:42)
	at com.noxpvp.radarjammer.wrapper.WrapperPlayServerNamedEntitySpawn.getPlayerUUID(WrapperPlayServerNamedEntitySpawn.java:123)
	at com.noxpvp.radarjammer.wrapper.WrapperPlayServerNamedEntitySpawn.setPlayerName(WrapperPlayServerNamedEntitySpawn.java:114)
	at com.noxpvp.radarjammer.JammingUtils.sendInvisPlayer(JammingUtils.java:34)
	at com.noxpvp.radarjammer.packet.AsyncTracerScrambler.run(AsyncTracerScrambler.java:62)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:67)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	... 3 more

[10:37:36] [Craft Scheduler Thread - 23/WARN]: org.apache.commons.lang.UnhandledException: Plugin NoxRadarJammer v1.3.4 Beta generated an exception while executing task 6159
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: net.minecraft.util.com.mojang.authlib.GameProfile.getId()Ljava/lang/String;
	at com.comphenix.protocol.wrappers.WrappedGameProfile.getId(WrappedGameProfile.java:42)
	at com.noxpvp.radarjammer.wrapper.WrapperPlayServerNamedEntitySpawn.getPlayerUUID(WrapperPlayServerNamedEntitySpawn.java:123)
	at com.noxpvp.radarjammer.wrapper.WrapperPlayServerNamedEntitySpawn.setPlayerName(WrapperPlayServerNamedEntitySpawn.java:114)
	at com.noxpvp.radarjammer.JammingUtils.sendCrouchedPlayer(JammingUtils.java:21)
	at com.noxpvp.radarjammer.packet.AsyncMapScrambler.run(AsyncMapScrambler.java:54)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftTask.run(CraftTask.java:67)
	at org.bukkit.craftbukkit.v1_7_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	... 3 more