holoapi crash

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 11/15/15 9:59 AM
Description: Ticking entity

java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Byte
	at pz.a(SourceFile:92)
	at ph.l(SourceFile:71)
	at ph.j_(SourceFile:156)
	at ps.canSkipUpdate(EntityLiving.java:1386)
	at ps.t_(EntityLiving.java:304)
	at tp.t_(SourceFile:1032)
	at pk.ak(SourceFile:1360)
	at pr.ak(SourceFile:1512)
	at adm.a(SourceFile:1406)
	at adm.g(SourceFile:1386)
	at adm.a(SourceFile:1454)
	at adm.g(SourceFile:1386)
	at adm.i(SourceFile:1279)
	at ave.s(SourceFile:1850)
	at ave.av(SourceFile:889)
	at ave.a(SourceFile:325)
	at net.minecraft.client.main.Main.main(SourceFile:124)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)


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

-- Head --
Stacktrace:
	at pz.a(SourceFile:92)
	at ph.l(SourceFile:71)
	at ph.j_(SourceFile:156)
	at ps.canSkipUpdate(EntityLiving.java:1386)
	at ps.t_(EntityLiving.java:304)
	at tp.t_(SourceFile:1032)
	at pk.ak(SourceFile:1360)
	at pr.ak(SourceFile:1512)
	at adm.a(SourceFile:1406)
	at adm.g(SourceFile:1386)
	at adm.a(SourceFile:1454)
	at adm.g(SourceFile:1386)

-- Entity being ticked --
Details:
	Entity Type: WitherSkull (xd)
	Entity ID: -11
	Entity Name: entity.WitherSkull.name
	Entity's Exact location: -9.50, 151.00, 0.00
	Entity's Block location: -10.00,151.00,0.00 - World: (-10,151,0), Chunk: (at 6,9,0 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Entity's Momentum: NaN, NaN, NaN
	Entity's Rider: tp['Horse'/-12, l='MpServer', x=-9.50, y=151.00, z=0.00]
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at adm.i(SourceFile:1279)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bew['AlzPlays'/19, l='MpServer', x=-1.50, y=90.00, z=0.50]]
	Chunk stats: MultiplayerChunkCache: 400, 400
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options:
	Level spawn location: -4.00,92.00,0.00 - World: (-4,92,0), Chunk: (at 12,5,0 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 51011566 game time, 5192535211 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 7 total; [tp['Horse'/-12, l='MpServer', x=-9.50, y=151.00, z=0.00], xd['entity.WitherSkull.name'/-11, l='MpServer', x=-9.50, y=151.00, z=0.00], tp['Horse'/-8, l='MpServer', x=-9.50, y=150.75, z=0.00], xd['entity.WitherSkull.name'/-7, l='MpServer', x=-9.50, y=150.75, z=0.00], tp['Horse'/-4, l='MpServer', x=-9.50, y=150.50, z=0.00], bew['AlzPlays'/19, l='MpServer', x=-1.50, y=90.00, z=0.50], xd['entity.WitherSkull.name'/-3, l='MpServer', x=-9.50, y=150.50, z=0.00]]
	Retry entities: 0 total; []
	Server brand: BungeeCord (git:BungeeCord-Bootstrap:1.8-SNAPSHOT:"61d2765":1039) <- Spigot
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bdb.a(WorldClient.java:401)
	at ave.b(SourceFile:2311)
	at ave.a(SourceFile:334)
	at net.minecraft.client.main.Main.main(SourceFile:124)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
	Minecraft Version: 1.8.8
	Operating System: Windows 7 (amd64) version 6.1
	CPU: 2x AMD E-300 APU with Radeon(tm) HD Graphics
	Java Version: 1.7.0_79, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 173564320 bytes (165 MB) / 365424640 bytes (348 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 10, tcache: 91, allocated: 13, tallocated: 95
	Launched Version: 1.8.8-OptiFine_HD_U_F3
	LWJGL: 2.9.4
	OpenGL: AMD Radeon HD 6310 Graphics GL version 4.5.13399 Compatibility Profile Context 15.200.1062.1004, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs:
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 2x AMD E-300 APU with Radeon(tm) HD Graphics