New Error?

Sun Jan 15 20:33:36 GMT 2017 tab 1:
javax.script.ScriptException: ReferenceError: "player" is not defined in <eval> at line number 3
    at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:467)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:451)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:403)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:399)
    at jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:155)
    at javax.script.AbstractScriptEngine.eval(Unknown Source)
    at noppes.npcs.controllers.ScriptContainer.run(ScriptContainer.java:99)
    at noppes.npcs.entity.data.DataScript.runScript(DataScript.java:62)
    at noppes.npcs.EventHooks.onNPCInit(EventHooks.java:77)
    at noppes.npcs.entity.data.DataScript.runScript(DataScript.java:52)
    at noppes.npcs.EventHooks.onNPCCollide(EventHooks.java:85)
    at noppes.npcs.entity.EntityNPCInterface.onCollide(EntityNPCInterface.java:1044)
    at noppes.npcs.entity.EntityNPCInterface.func_70636_d(EntityNPCInterface.java:351)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1614)
    at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:311)
    at noppes.npcs.entity.EntityNPCInterface.func_70071_h_(EntityNPCInterface.java:256)
    at noppes.npcs.entity.EntityCustomNpc.func_70071_h_(EntityCustomNpc.java:35)
    at net.minecraft.world.World.func_72866_a(World.java:1860)
    at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:699)
    at net.minecraft.world.World.func_72870_g(World.java:1829)
    at net.minecraft.world.World.func_72939_s(World.java:1661)
    at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:251)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)
    at java.lang.Thread.run(Unknown Source)
Caused by: <eval>:3 ReferenceError: "player" is not defined
    at jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57)
    at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:319)
    at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:291)
    at jdk.nashorn.internal.objects.Global.__noSuchProperty__(Global.java:1426)
    at jdk.nashorn.internal.scripts.Script$3$\^eval\_.:program(<eval>:3)
    at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637)
    at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)
    at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:446)
    ... 25 more