---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.
Time: 2/28/17 5:34 PM
Description: Ticking entity
java.lang.ClassCastException: java.lang.Byte cannot be cast to com.google.common.base.Optional
    at aae.A_(SourceFile:202)
    at ajs.a(SourceFile:1517)
    at ajs.h(SourceFile:1495)
    at ajs.k(SourceFile:1378)
    at bes.t(SourceFile:1652)
    at bes.av(SourceFile:970)
    at bes.a(SourceFile:398)
    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: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 --
Thread: Client thread
Stacktrace:
    at aae.A_(SourceFile:202)
    at ajs.a(SourceFile:1517)
    at ajs.h(SourceFile:1495)
-- Entity being ticked --
Details:
    Entity Type: minecraft:shulker (aae)
    Entity ID: 101557434
    Entity Name: Shulker
    Entity's Exact location: 4660.00, 52.00, 4960.00
    Entity's Block location: World: (4660,52,4960), Chunk: (at 4,3,0 in 291,310; contains blocks 4656,0,4960 to 4671,255,4975), Region: (9,9; contains chunks 288,288 to 319,319, blocks 4608,0,4608 to 5119,255,5119)
    Entity's Momentum: 0.00, 0.00, 0.00
    Entity's Passengers: []
    Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
    at ajs.k(SourceFile:1378)
-- Affected level --
Details:
    Level name: MpServer
    All players: 1 total; [bps['Ardenmorsolias'/101535762, l='MpServer', x=4662.28, y=50.00, z=4976.46]]
    Chunk stats: MultiplayerChunkCache: 122, 122
    Level seed: 0
    Level generator: ID 01 - flat, ver 0. Features enabled: false
    Level generator options:
    Level spawn location: World: (-675,52,-106), Chunk: (at 13,3,6 in -43,-7; contains blocks -688,0,-112 to -673,255,-97), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
    Level time: 1254338895 game time, 66000 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: 8 total; [zj['item.tile.flower2.oxeyeDaisy'/101558891, l='MpServer', x=4662.66, y=50.00, z=4980.93], zj['item.item.seeds'/101558890, l='MpServer', x=4662.21, y=50.00, z=4980.66], zj['item.item.bone'/101558693, l='MpServer', x=4661.13, y=48.00, z=4971.88], zj['item.tile.hellsand'/101558692, l='MpServer', x=4660.13, y=48.00, z=4971.88], aam['§fwalleto'/101537671, l='MpServer', x=4653.64, y=50.00, z=4971.32], bpt['MHF_Alex'/101557434, l='MpServer', x=4677.92, y=42.63, z=4986.63], bpt['MHF_Alex'/101557434, l='MpServer', x=4663.59, y=50.00, z=4977.46], bps['Ardenmorsolias'/101535762, l='MpServer', x=4662.28, y=50.00, z=4976.46]]
    Retry entities: 0 total; []
    Server brand: BungeeCord (git:BungeeCord-Bootstrap:1.11-SNAPSHOT:6104354:1217) <- Spigot
    Server type: Non-integrated multiplayer server
Stacktrace:
    at bnq.a(WorldClient.java:524)
    at bes.b(SourceFile:2539)
    at bes.a(SourceFile:407)
    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:131)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
-- System Details --
Details:
    Minecraft Version: 1.11.2
    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: 185088040 bytes (176 MB) / 509186048 bytes (485 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: 20, tcache: 168, allocated: 13, tallocated: 95
    Launched Version: 1.11.2-OptiFine_HD_U_B5
    LWJGL: 2.9.4
    OpenGL: AMD Radeon HD 5450 GL version 4.5.13399 Compatibility Profile Context 15.201.1151.1008, 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: Very likely; Jar signature invalidated
    Type: Client (map_client.txt)
    Resource Packs: Brighter Nether.zip (incompatible), Clean Glass.zip (incompatible), Clean Stained Glass.zip (incompatible), Dark Oak Saturation.zip (incompatible), Lower Shield.zip (incompatible), Neutral End Rods.zip (incompatible), Transparent Pumpkin.zip (incompatible), Smoother Stones.zip (incompatible), Sticky Piston Sides.zip (incompatible), Lower Fire.zip (incompatible)
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    CPU: 8x Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
    OptiFine Version: OptiFine_1.11.2_HD_U_B5
    Render Distance Chunks: 16
    Mipmaps: 4
    Anisotropic Filtering: 8
    Antialiasing: 0
    Multitexture: true
    Shaders: null
    OpenGlVersion: 4.5.13399 Compatibility Profile Context 15.201.1151.1008
    OpenGlRenderer: AMD Radeon HD 5450
    OpenGlVendor: ATI Technologies Inc.
    CpuCount: 8