---- Minecraft Crash Report ----
// This is a token for 1 free hug. Redeem at your nearest Mojangsta: _HUG~

Time: 11/6/15 7:50 PM
Description: Ticking entity

java.lang.ClassCastException: ahw cannot be cast to ahn
at aqo.a(SourceFile:148)
at aqv$a.c(SourceFile:373)
at aym.a(SourceFile:107)
at aym.a(SourceFile:127)
at aym.a(SourceFile:82)
at ayk.a(SourceFile:82)
at ayk.a(SourceFile:40)
at ayk.a(SourceFile:30)
at vb.a(SourceFile:89)
at va.a(SourceFile:53)
at va.a(SourceFile:76)
at vb.a(SourceFile:127)
at tf.e(SourceFile:81)
at th.a(SourceFile:129)
at ry.cd(SourceFile:631)
at rx.n(SourceFile:1688)
at ry.n(SourceFile:484)
at rl.n(SourceFile:134)
at vs.n(SourceFile:41)
at rx.m(SourceFile:1550)
at ry.m(SourceFile:275)
at ahn.a(SourceFile:1481)
at lq.a(SourceFile:719)
at ahn.g(SourceFile:1459)
at ahn.k(SourceFile:1349)
at lq.k(SourceFile:552)
at net.minecraft.server.MinecraftServer.D(SourceFile:618)
at lb.D(SourceFile:314)
at net.minecraft.server.MinecraftServer.C(SourceFile:546)
at net.minecraft.server.MinecraftServer.run(SourceFile:450)
at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at aqo.a(SourceFile:148)
at aqv$a.c(SourceFile:373)
at aym.a(SourceFile:107)
at aym.a(SourceFile:127)
at aym.a(SourceFile:82)
at ayk.a(SourceFile:82)
at ayk.a(SourceFile:40)
at ayk.a(SourceFile:30)
at vb.a(SourceFile:89)
at va.a(SourceFile:53)
at va.a(SourceFile:76)
at vb.a(SourceFile:127)
at tf.e(SourceFile:81)
at th.a(SourceFile:129)
at ry.cd(SourceFile:631)
at rx.n(SourceFile:1688)
at ry.n(SourceFile:484)
at rl.n(SourceFile:134)
at vs.n(SourceFile:41)
at rx.m(SourceFile:1550)
at ry.m(SourceFile:275)
at ahn.a(SourceFile:1481)
at lq.a(SourceFile:719)
at ahn.g(SourceFile:1459)

– Entity being ticked –
Details:
Entity Type: Cow (vu)
Entity ID: 589
Entity Name: Cow
Entity's Exact location: 5258.79, 63.00, 728.45
Entity's Block location: World: (5258,63,728), Chunk: (at 10,3,8 in 328,45; contains blocks 5248,0,720 to 5263,255,735), Region: (10,1; contains chunks 320,32 to 351,63, blocks 5120,0,512 to 5631,255,1023)
Entity's Momentum: 0.02, -0.08, -0.01
Entity's Passengers: []
Entity's Vehicle: ~_ERROR~ NullPointerException: null
Stacktrace:
at ahn.k(SourceFile:1349)
at lq.k(SourceFile:552)

– Affected level –
Details:
Level name: testworld
All players: 4 total; [ls['xAndrewRyan'/92, l='testworld', x=9133.14, y=79.00, z=647.45], ls['Lujiu'/198, l='testworld', x=4813.30, y=79.00, z=3404.17], ls['HyronixHS'/287, l='testworld', x=-54.61, y=64.00, z=-60733.52], ls['Loiko'/470, l='testworld', x=5250.67, y=62.00, z=657.64]]
Chunk stats: ServerChunkCache: 1532 Drop: 0
Level seed: 10354210433456178684691
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (2988,72,-3519), Chunk: (at 12,4,1 in 186,-220; contains blocks 2976,0,-3520 to 2991,255,-3505), Region: (5,-7; contains chunks 160,-224 to 191,-193, blocks 2560,0,-3584 to 3071,255,-3073)
Level time: 157904344 game time, 157934871 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 130798 (now: false), thunder time: 46931 (now: false)
Level game mode: Game mode: adventure (ID 2). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.D(SourceFile:618)
at lb.D(SourceFile:314)
at net.minecraft.server.MinecraftServer.C(SourceFile:546)
at net.minecraft.server.MinecraftServer.run(SourceFile:450)
at java.lang.Thread.run(Thread.java:745)