When someone on a server kills someone else with an enchanted yoyo, the person that was killed will crash with the following error:
``
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
at com.jozufozu.yoyos.common.EntityYoyo.getPlayerHandPos(EntityYoyo.java:336)
at com.jozufozu.yoyos.client.RenderYoYo.doRender(RenderYoYo.java:48)
at com.jozufozu.yoyos.client.RenderYoYo.func_76986_a(RenderYoYo.java:25)
at net.minecraft.client.renderer.entity.RenderManager.func_188391_a(RenderManager.java:366)
at net.minecraft.client.renderer.entity.RenderManager.func_188388_a(RenderManager.java:350)
at net.minecraft.client.renderer.RenderGlobal.func_180446_a(RenderGlobal.java:624)
at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1315)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1229)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1038)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1076)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Fairly certain this has been fixed