I crash repeatedly just after loading onto a server. Often crash randomly at times while traveling the world with the same error. No idea what is going on. My friend does not crash and is near the same spot. If you have any clue would be great. We are working an old 1.7.10 server magic theme. Thanks much for any help. Ariel M. Faye

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 9/27/16 4:29 PM
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: 13
at mods.natura.blocks.overrides.AlternateBookshelf.func_149691_a(AlternateBookshelf.java:31)
at net.minecraft.block.Block.func_149673_e(Block.java:556)
at net.minecraft.client.renderer.RenderBlocks.func_147793_a(RenderBlocks.java:8227)
at net.minecraft.client.renderer.RenderBlocks.func_147751_a(RenderBlocks.java:4666)
at net.minecraft.client.renderer.RenderBlocks.func_147784_q(RenderBlocks.java:4247)
at net.minecraft.client.renderer.RenderBlocks.func_147805_b(RenderBlocks.java:255)
at net.minecraft.client.renderer.WorldRenderer.func_147892_a(WorldRenderer.java:181)
at net.minecraft.client.renderer.RenderGlobal.func_72716_a(RenderGlobal.java:1553)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1011)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
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:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Stacktrace:
at mods.natura.blocks.overrides.AlternateBookshelf.func_149691_a(AlternateBookshelf.java:31)
at net.minecraft.block.Block.func_149673_e(Block.java:556)
at net.minecraft.client.renderer.RenderBlocks.func_147793_a(RenderBlocks.java:8227)
at net.minecraft.client.renderer.RenderBlocks.func_147751_a(RenderBlocks.java:4666)
at net.minecraft.client.renderer.RenderBlocks.func_147784_q(RenderBlocks.java:4247)
at net.minecraft.client.renderer.RenderBlocks.func_147805_b(RenderBlocks.java:255)
at net.minecraft.client.renderer.WorldRenderer.func_147892_a(WorldRenderer.java:181)
at net.minecraft.client.renderer.RenderGlobal.func_72716_a(RenderGlobal.java:1553)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['ArielFaye'/207823, l='MpServer', x=-170.52, y=82.05, z=814.30]]
Chunk stats: MultiplayerChunkCache: 441, 441
Level seed: 0
Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-635,64,998), Chunk: (at 5,4,6 in -40,62; contains blocks -640,0,992 to -625,255,1007), Region: (-2,1; contains chunks -64,32 to -33,63, blocks -1024,0,512 to -513,255,1023)
Level time: 24257148 game time, 26056706 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 101 total; [EntitySheep['Sheep'/207875, l='MpServer', x=-118.03, y=64.00, z=833.66], Entity_SpecialSpider['Spider'/207874, l='MpServer', x=-137.31, y=29.00, z=756.56], MoCEntityBunny['Bunny'/207873, l='MpServer', x=-209.50, y=78.00, z=782.00], EntityZombieCat['entity.GraveStone.GSZombieCat.name'/207872, l='MpServer', x=-209.50, y=39.00, z=775.50], Entity_SpecialZombie['Zombie'/207879, l='MpServer', x=-237.66, y=21.00, z=809.34], EntitySheep['Sheep'/207878, l='MpServer', x=-140.44, y=68.00, z=848.78], EntitySheep['Sheep'/207877, l='MpServer', x=-116.28, y=66.00, z=832.22], EntityClientPlayerMP['ArielFaye'/207823, l='MpServer', x=-170.52, y=82.05, z=814.30], EntitySheep['Sheep'/207876, l='MpServer', x=-117.41, y=65.00, z=832.47], Entity_SpecialZombie['Zombie'/207883, l='MpServer', x=-217.50, y=72.00, z=763.50], EntitySheep['Sheep'/207882, l='MpServer', x=-207.75, y=77.00, z=764.22], MoCEntityAnt['Ant'/207881, l='MpServer', x=-241.69, y=73.00, z=818.28], Entity_SpecialCreeper['Creeper'/207880, l='MpServer', x=-174.94, y=79.00, z=738.63], EntityZombie['Carl Maszom'/207887, l='MpServer', x=-118.03, y=12.00, z=761.38], Entity_SpecialCreeper['Creeper'/207886, l='MpServer', x=-215.53, y=72.00, z=761.56], Entity_SpecialZombie['Zombie'/207885, l='MpServer', x=-209.00, y=76.00, z=755.56], Entity_SpecialZombie['Zombie'/207884, l='MpServer', x=-213.72, y=74.00, z=769.16], EntityOcelot['Ocelot'/207891, l='MpServer', x=-204.38, y=78.00, z=870.00], MoCEntityDragonfly['DragonFly'/207890, l='MpServer', x=-121.88, y=64.00, z=753.59], Entity_SpecialSkeleton['Skeleton'/207889, l='MpServer', x=-118.72, y=64.00, z=753.84], EntityManaElemental['Mana Elemental'/207888, l='MpServer', x=-121.50, y=20.00, z=760.50], Entity_SpecialCreeper['Creeper'/207895, l='MpServer', x=-107.50, y=70.00, z=776.50], EntitySheep['Sheep'/207892, l='MpServer', x=-192.44, y=85.00, z=737.34], EntitySheep['Sheep'/207899, l='MpServer', x=-161.53, y=73.00, z=735.31], EntityZombieCat['entity.GraveStone.GSZombieCat.name'/207897, l='MpServer', x=-249.50, y=76.00, z=808.50], MoCEntityAnt['Ant'/207903, l='MpServer', x=-245.75, y=72.00, z=821.16], EntitySquid['Squid'/207902, l='MpServer', x=-128.50, y=58.31, z=748.50], MoCEntityBunny['Bunny'/207900, l='MpServer', x=-174.28, y=68.00, z=728.47], MoCEntityBird['Bird'/207907, l='MpServer', x=-155.63, y=68.00, z=885.84], MoCEntityAnt['Ant'/207904, l='MpServer', x=-254.59, y=78.00, z=818.13], MoCEntityFox['Fox'/207911, l='MpServer', x=-80.50, y=68.00, z=783.81], EntitySheep['Sheep'/207910, l='MpServer', x=-204.50, y=77.00, z=734.22], EntityChicken['Chicken'/207914, l='MpServer', x=-138.56, y=66.00, z=887.53], MoCEntityBird['Bird'/207912, l='MpServer', x=-90.78, y=72.00, z=834.22], EntitySheep['Sheep'/207923, l='MpServer', x=-243.50, y=67.00, z=752.55], EntitySheep['Sheep'/207922, l='MpServer', x=-243.50, y=66.00, z=753.55], MoCEntityDuck['Duck'/207920, l='MpServer', x=-210.56, y=81.00, z=886.75], Entity_SpecialZombie['Zombie'/207925, l='MpServer', x=-244.50, y=67.00, z=759.50], EntityHungryZombie['Hungry Zombie'/207924, l='MpServer', x=-240.50, y=65.00, z=759.03], MoCEntityBird['Bird'/207929, l='MpServer', x=-159.78, y=65.00, z=910.78], EntitySheep['Sheep'/207939, l='MpServer', x=-243.50, y=66.00, z=751.45], MoCEntityDuck['Duck'/207938, l='MpServer', x=-229.16, y=83.00, z=890.38], EntitySheep['Sheep'/207940, l='MpServer', x=-242.66, y=69.00, z=742.53], MoCEntityCricket['Cricket'/207947, l='MpServer', x=-85.53, y=67.00, z=874.75], MoCEntityBird['Bird'/207948, l='MpServer', x=-157.78, y=71.00, z=913.78], EntityZombie['Zombie'/1111, l='MpServer', x=0.10, y=-40.62, z=-4.40], EntityXPOrb['Experience Orb'/207963, l='MpServer', x=-247.31, y=32.25, z=695.22], MoCEntitySnake['Snake'/207961, l='MpServer', x=-80.81, y=72.00, z=897.16], MoCEntityButterfly['ButterFly'/207960, l='MpServer', x=-263.88, y=71.00, z=724.38], MoCEntityBird['Bird'/207967, l='MpServer', x=-83.66, y=64.22, z=912.22], EntitySpitfireSkeleton['Spitfire Skeleton'/208238, l='MpServer', x=-221.50, y=75.00, z=777.50], MoCEntityMouse['Mouse'/207991, l='MpServer', x=-53.47, y=72.00, z=917.56], MoCEntityCricket['Cricket'/208002, l='MpServer', x=-298.59, y=65.00, z=721.63], MoCEntityBird['Bird'/208000, l='MpServer', x=-64.72, y=70.00, z=939.22], Entity_SpecialCreeper['Creeper'/208275, l='MpServer', x=-226.13, y=82.00, z=891.66], Entity_SpecialZombie['Zombie'/208278, l='MpServer', x=-209.50, y=38.00, z=765.50], EntitySilverfish['Silverfish'/1941, l='MpServer', x=-19.48, y=-43.62, z=-43.17], EntityPlagueZombie['Plague Zombie'/208277, l='MpServer', x=-208.50, y=38.00, z=765.50], EntitySniperSkeleton['Sniper Skeleton'/208283, l='MpServer', x=-104.53, y=64.00, z=867.84], MoCEntityFirefly['Firefly'/208024, l='MpServer', x=-47.50, y=63.00, z=867.50], EntityPoisonSkeleton['Poison Skeleton'/208284, l='MpServer', x=-121.44, y=64.00, z=871.31], EntitySilverfish['Silverfish'/1730, l='MpServer', x=31.58, y=-38.71, z=35.45], EntitySheep['Sheep'/207835, l='MpServer', x=-150.25, y=78.00, z=805.59], Entity_SpecialZombie['Zombie'/207834, l='MpServer', x=-169.31, y=12.00, z=791.28], Entity_SpecialZombie['Zombie'/207833, l='MpServer', x=-171.30, y=11.02, z=784.28], EntitySheep['Sheep'/207839, l='MpServer', x=-156.45, y=78.00, z=817.45], EntitySheep['Sheep'/207838, l='MpServer', x=-157.53, y=79.32, z=818.53], EntityLightningCreeper['Lightning Creeper'/207837, l='MpServer', x=-154.50, y=74.00, z=792.50], EntitySheep['Sheep'/207836, l='MpServer', x=-158.38, y=80.00, z=831.47], EntityZombieCat['entity.GraveStone.GSZombieCat.name'/207843, l='MpServer', x=-205.41, y=39.00, z=778.03], EntitySheep['Sheep'/207842, l='MpServer', x=-153.47, y=73.00, z=844.63], EntitySheep['Sheep'/207841, l='MpServer', x=-145.50, y=76.00, z=847.50], EntitySheep['Sheep'/207840, l='MpServer', x=-148.50, y=77.00, z=843.50], EntitySheep['Sheep'/207847, l='MpServer', x=-202.53, y=86.00, z=777.50], EntitySheep['Sheep'/207846, l='MpServer', x=-213.47, y=75.00, z=771.63], EntityWebSpider['Web Spider'/207845, l='MpServer', x=-204.75, y=39.00, z=776.84], Entity_SpecialSpider['Spider'/207844, l='MpServer', x=-206.53, y=39.00, z=776.13], EntitySheep['Sheep'/207851, l='MpServer', x=-121.50, y=74.00, z=813.50], MoCEntityMouse['Mouse'/207850, l='MpServer', x=-209.88, y=78.00, z=808.31], EntityFireSkeleton['Fire Skeleton'/207849, l='MpServer', x=-129.34, y=26.00, z=771.22], EntitySheep['Sheep'/207848, l='MpServer', x=-201.47, y=86.00, z=777.50], Entity_SpecialCreeper['Creeper'/207855, l='MpServer', x=-179.50, y=14.00, z=759.50], EntityZombie['Ereulob Ditu'/207854, l='MpServer', x=-184.31, y=10.54, z=753.16], EntitySheep['Sheep'/207853, l='MpServer', x=-120.50, y=66.00, z=813.50], EntitySheep['Sheep'/207852, l='MpServer', x=-120.50, y=66.00, z=813.50], Entity_SpecialZombie['Zombie'/207859, l='MpServer', x=-188.34, y=17.00, z=756.31], Entity_SpecialZombie['Zombie'/207858, l='MpServer', x=-193.50, y=17.00, z=747.98], Entity_SpecialZombie['Zombie'/207857, l='MpServer', x=-188.66, y=17.00, z=757.22], Entity_SpecialSkeleton['Skeleton'/207856, l='MpServer', x=-189.56, y=14.00, z=774.06], Entity_SpecialZombie['Zombie'/207863, l='MpServer', x=-153.78, y=29.00, z=763.19], MoCEntityBunny['Bunny'/207862, l='MpServer', x=-186.06, y=77.00, z=768.13], EntityOcelot['Ocelot'/207861, l='MpServer', x=-177.50, y=75.00, z=754.06], Entity_SpecialZombie['Zombie'/207860, l='MpServer', x=-187.50, y=39.00, z=766.50], Entity_SpecialZombie['Zombie'/207867, l='MpServer', x=-113.38, y=62.00, z=790.78], MoCEntityMiniGolem['MiniGolem'/207866, l='MpServer', x=-113.22, y=62.00, z=789.13], MoCEntitySilverSkeleton['SilverSkeleton'/207865, l='MpServer', x=-114.50, y=62.00, z=790.53], MoCEntitySilverSkeleton['SilverSkeleton'/207864, l='MpServer', x=-115.06, y=62.00, z=788.47], EntitySheep['Sheep'/207871, l='MpServer', x=-104.16, y=63.00, z=824.81], EntitySheep['Sheep'/207870, l='MpServer', x=-122.50, y=79.00, z=816.50], Entity_SpecialZombie['Zombie'/207869, l='MpServer', x=-111.38, y=62.00, z=789.38], Entity_SpecialZombie['Zombie'/207868, l='MpServer', x=-113.59, y=62.00, z=791.81]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Non-integrated multiplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2444)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:927)
at net.minecraft.client.main.Main.main(SourceFile:148)
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:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Mac OS X (x86_64) version 10.11.6
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1084724184 bytes (1034 MB) / 2025848832 bytes (1932 MB) up to 2025848832 bytes (1932 MB)
JVM Flags: 5 total; -Xms2048m -Xmx2048m -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -XX:PermSize=128m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 96
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 52 mods loaded, 52 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJA mcp{9.05} Minecraft Coder Pack
UCHIJA FML{7.10.99.99} Forge Mod Loader
UCHIJA Forge{10.13.4.1614} Minecraft Forge
UCHIJA AM2-Preloader{0.0.3} AMCore
UCHIJA CodeChickenCore{1.0.6.44} CodeChicken Core
UCHIJA MobiusCore{1.2.3} MobiusCore
UCHIJA NotEnoughItems{1.0.3.74} Not Enough Items
UCHIJA ThaumicTinkerer-preloader{0.1} Thaumic Tinkerer Core
UCHIJA AnimationAPI{1.2.4} AnimationAPI
UCHIJA arsmagica2{1.4.0.009} Ars Magica 2
UCHIJA bspkrsCore{6.16} bspkrsCore
UCHIJA ArmorStatusHUD{1.28} ArmorStatusHUD
UCHIJA DirectionHUD{1.24} DirectionHUD
UCHIJA StatusEffectHUD{1.27} StatusEffectHUD
UCHIJA BiblioCraft{1.11.5} BiblioCraft
UCHIJA Mantle{1.7.10-0.3.2.jenkins191} Mantle
UCHIJA Natura{2.2.0} Natura
UCHIJA BiomesOPlenty{2.1.0} Biomes O' Plenty
UCHIJA BiblioWoodsBoP{1.9} BiblioWoods Biomes O'Plenty Edition
UCHIJA BiblioWoodsNatura{1.5} BiblioWoods Natura Edition
UCHIJA AWWayofTime{v1.3.3} Blood Magic: Alchemical Wizardry
UCHIJA Baubles{1.0.1.10} Baubles
UCHIJA Thaumcraft{4.2.3.5} Thaumcraft
UCHIJA Botania{r1.8-249} [Botania](Botania r1.8-249.jar)
UCHIJA ChickenChunks{1.3.4.16} ChickenChunks
UCHIJA DeadlyWorld{1.0.2} Deadly World
UCHIJA MoCreatures{6.3.1} [DrZhark's Mo'Creatures Mod](DrZharks MoCreatures Mod v6.3.1.zip)
UCHIJA EnderStorage{1.4.7.36} EnderStorage
UCHIJA ExtraUtilities{1.2.4c} Extra Utilities
UCHIJA Waila{1.5.5} Waila
UCHIJA ThaumicTinkerer{unspecified} Thaumic Tinkerer
UCHIJA ForbiddenMagic{1.7.10-0.562} [Forbidden Magic](Forbidden Magic-1.7.10-0.562.jar)
UCHIJA Forestry{4.2.15.63} Forestry for Minecraft
UCHIJA GraveStone{2.16.1} GraveStone
UCHIJA Growthcraft{2.1.0a} Growthcraft
UCHIJA Growthcraft|Cellar{2.1.0a} Growthcraft Cellar
UCHIJA Growthcraft|Apples{2.1.0} Growthcraft Apples
UCHIJA Growthcraft|Bamboo{2.1.0} Growthcraft Bamboo
UCHIJA Growthcraft|Bees{2.1.0} Growthcraft Bees
UCHIJA Growthcraft|Fishtrap{2.1.0a} Growthcraft Fishtrap
UCHIJA Growthcraft|Grapes{2.1.0} Growthcraft Grapes
UCHIJA Growthcraft|Hops{2.1.0} Growthcraft Hops
UCHIJA Growthcraft|Rice{2.1.0a} Growthcraft Rice
UCHIJA inventorytweaks{1.58-147-645ca10} Inventory Tweaks
UCHIJA IronChest{6.0.62.742} Iron Chest
UCHIJA JABBA{1.1.4} JABBA
UCHIJA Mystcraft{0.12.3.02} Mystcraft
UCHIJA ReiMinimap{1.7.10} Rei's Minimap
UCHIJA SpecialMobs{3.2.2} Special Mobs
UCHIJA TConstruct{1.7.10-1.8.5.build957} Tinkers' Construct
UCHIJA TwilightForest{2.3.7} The Twilight Forest
UCHIJA witchery{0.23.2} Witchery
Mantle Environment: Environment healthy.
TConstruct Environment: Environment healthy.
Launched Version: 1.7.10-Forge10.13.4.1614-1.7.10
LWJGL: 2.9.1
OpenGL: NVIDIA GeForce GT 650M OpenGL Engine GL version 2.1 NVIDIA-10.10.13 310.42.25f01, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

1.7.10 is no longer supported