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Here's my crash report, can anyone help me?

---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 7/1/16 10:03 AM
Description: Rendering entity in world

java.lang.ClassCastException: java.lang.Byte cannot be cast to com.google.common.base.Optional
at yj.dc(SourceFile:310)
at brh.a(SourceFile:28)
at brh.a(SourceFile:12)
at brj.a(SourceFile:338)
at brj.a(SourceFile:325)
at bnl.a(SourceFile:603)
at bnd.a(SourceFile:1260)
at bnd.b(SourceFile:1165)
at bnd.a(SourceFile:1012)
at bcd.av(SourceFile:992)
at bcd.a(SourceFile:399)
at net.minecraft.client.main.Main.main(SourceFile:124)


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

-- Head --
Thread: Client thread
Stacktrace:
at yj.dc(SourceFile:310)
at brh.a(SourceFile:28)
at brh.a(SourceFile:12)

-- Entity being rendered --
Details:
Entity Type: Enderman (yj)
Entity ID: 2988995
Entity Name: Enderman
Entity's Exact location: -7497.25, 128.00, -14980.72
Entity's Block location: World: (-7498,128,-14981), Chunk: (at 6,8,11 in -469,-937; contains blocks -7504,0,-14992 to -7489,255,-14977), Region: (-15,-30; contains chunks -480,-960 to -449,-929, blocks -7680,0,-15360 to -7169,255,-14849)
Entity's Momentum: 0.00, 0.00, 0.00
Entity's Passengers: []
Entity's Vehicle: ~~ERROR~~ NullPointerException: null

-- Renderer details --
Details:
Assigned renderer: [email protected]
Location: -8.00,-1.00,-4.33 - World: (-8,-1,-5), Chunk: (at 8,-1,11 in -1,-1; contains blocks -16,0,-16 to -1,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Rotation: 158.90625
Delta: 0.5367797
Stacktrace:
at brj.a(SourceFile:338)
at brj.a(SourceFile:325)
at bnl.a(SourceFile:603)
at bnd.a(SourceFile:1260)
at bnd.b(SourceFile:1165)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bmr['ProdigyGaming_'/354223, l='MpServer', x=-7489.35, y=129.00, z=-14976.40]]
Chunk stats: MultiplayerChunkCache: 81, 81
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-7488,80,-14990), Chunk: (at 0,5,2 in -468,-937; contains blocks -7488,0,-14992 to -7473,255,-14977), Region: (-15,-30; contains chunks -480,-960 to -449,-929, blocks -7680,0,-15360 to -7169,255,-14849)
Level time: 780369642 game time, 407304000 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: 4 total; [bmr['ProdigyGaming_'/354223, l='MpServer', x=-7489.35, y=129.00, z=-14976.40], yj['Enderman'/2988997, l='MpServer', x=-7498.25, y=128.00, z=-14981.75], yd['item.item.enderPearl'/2987814, l='MpServer', x=-7491.91, y=76.00, z=-14979.88], yj['Enderman'/2988995, l='MpServer', x=-7497.25, y=128.00, z=-14980.72]]
Retry entities: 0 total; []
Server brand: DesteriaSpigot
Server type: Non-integrated multiplayer server
Stacktrace:
at bks.a(SourceFile:365)
at bcd.b(SourceFile:2521)
at bcd.a(SourceFile:408)
at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
Minecraft Version: 1.9.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 128815176 bytes (122 MB) / 252207104 bytes (240 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: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.9.4
LWJGL: 2.9.4
OpenGL: AMD Radeon R7 200 Series GL version 4.5.13416 Compatibility Profile Context 15.300.1025.1001, 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: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: [email protected]

Hello,

Have you been running the world in multiple versions?

And, it looks like a Enderman is crashing your minecraft

Download MCEdit and go to " -7497.25, 128.00, -14980.72 ". Remove the Enderman and your world will now be fine.