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I was just playing this "Mod Pack" that Pat aka popularmmos and jen aka SuperGirlyGamer made. i've been playing on this world for about a day and for some reason my minecraft just crashed.. this happened when i was heading back to my base from the nether and i dont know what the heck made my minecraft crash.. help me plz

---- Minecraft Crash Report ----
// Ouch. That hurt

Time: 7/1/16 8:10 PM
Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
at cpw.mods.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:101)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

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

-- Head --
Stacktrace:
at cpw.mods.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:101)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)

-- Ticking connection --
Details:
Connection: [email protected]
Stacktrace:
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Mac OS X (x86_64) version 10.10.5
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 420527848 bytes (401 MB) / 1260912640 bytes (1202 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 1 total; -Xmx2G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 Optifine OptiFine_1.7.10_HD_U_D6 42 mods loaded, 42 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA Forge{10.13.4.1614} [Minecraft Forge] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar)
UCHIJAAAA NotEnoughItems{1.0.5.120} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.120-universal.jar)
UCHIJAAAA FamiliarsAPI{1.7.10} [Familiars API] (FamiliarsAPI-1.7.10.jar)
UCHIJAAAA battlegear2{1.7.10} [Mine & Blade Battlegear 2 - Bullseye] (1.7.10-MB_Battlegear2-Bullseye-1.0.8.3.jar)
UCHIJAAAA lucky{5.1.0} [Lucky Block] ([1-7-10]_Lucky_Block_v5-1-0.jar)
UCHIJAAAA nevermine{2.3} [AdventOfAscension] (AoA-2.4.B.jar)
UCHIJAAAA gibby_dungeons{1.5} [Arcana RPG] (Arcana RPG 1.5 - 1.7.10.jar)
UCHIJAAAA Backpack{2.0.1} [Backpack] (backpack-2.0.1-1.7.x.jar)
UCHIJAAAA bookshelf{1.1} [Bookshelf] (Bookshelf-1.7.10-1.1.jar)
UCHIJAAAA craftguide{1.6.8.2} [CraftGuide] (CraftGuide-1.6.8.2-forge.jar)
UCHIJAAAA DamageIndicatorsMod{3.2.0} [Damage Indicators] (Damage-Indicators-Mod-1.7.10.jar)
UCHIJAAAA props{1.11} [Decocraft] (Decocraft-v1.11_1.7.10.jar)
UCHIJAAAA dungeonpack{1.7.10-1.0} [Dungeon Pack] (dungeonpack-1.7.10-1.0.jar)
UCHIJAAAA eplus{3.0.2-d} [Enchanting Plus] (EnchantingPlus-1.7.10-3.0.2-d.jar)
UCHIJAAAA DefaultMobPack{1.7.10} [DefaultMobPack] (FamiliarsDefaultMobPack-1.7.10.jar)
UCHIJAAAA ExtendedFamPack{1.7.10} [ExtendedFamPack] (FamiliarsExtendedFamPack-1.7.10.jar)
UCHIJAAAA HerobrineFamPack{1.7.10} [HerobrineFamPack] (FamiliarsHerobrineFamPack-1.7.10.jar)
UCHIJAAAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAAAA Hats{4.0.0} [Hats] (Hats-Mod-1.7.10.jar)
UCHIJAAAA headcrumbs{1.2.5} [Headcrumbs] (Headcrumbs-Mod-1.7.10.jar)
UCHIJAAAA InfernalMobs{1.6.0} [Infernal Mobs] (InfernalMobs-1.7.10.jar)
UCHIJAAAA lootbags{2.0.12} [Loot Bags] (LootBags-1.7.10-2.0.12.jar)
UCHIJAAAA malisiscore{1.7.10-0.12.10} [MalisisCore] (malisiscore-1.7.10-0.12.10.jar)
UCHIJAAAA malisisdoors{1.7.10-1.13.2} [Malisis' Doors] (malisisdoors-1.7.10-1.13.2 5.05.25 PM.jar)
UCHIJAAAA MobAmputation{4.0.0} [MobAmputation] (Mob-Amputation-Mod-1.7.10.jar)
UCHIJAAAA MobDismemberment{4.0.0} [MobDismemberment] (MobDismemberment-4.0.0.jar)
UCHIJAAAA Morph{0.9.2} [Morph] (Morph-Beta-0.9.2.jar)
UCHIJAAAA cfm{3.4.7} [�9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.7(1.7.10).jar)
UCHIJAAAA mwaw{1.7.10-0.0.7} [Elemental Witch Mod] (mwaw-0.0.7-1.7.10.jar)
UCHIJAAAA obscore{1.3.3} [ObsCore] (obscore-1.3.3_mc1.7.10.jar)
UCHIJAAAA obstrophiesaoa{1.4.0} [ObsTrophies] (obstrophiesaoa-1.4.0_mc1.7.10.jar)
UCHIJAAAA RottenFleshToLeather{1.7.10-2.0} [Rotten Flesh to Leather] (RottenFleshToLeather-2.1-1.7.10 4.22.44 PM.jar)
UCHIJAAAA AS_Ruins{15.4} [Ruins Spawning System] (Ruins-1.7.10.jar)
UCHIJAAAA Torched{4.0.0} [Torched] (Torched-Mod-1.7.10.jar)
UCHIJAAAA AS_UpdateCheck{1.1.7} [AtomicStryker Update Check Mod] (UpdateCheckerMod-1.7.10.jar)
UCHIJAAAA Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar)
UCHIJAAAA youtubers{1.8.0} [Youtubers+ Mod] (youtubers-1.8.0-MC1.7.10.jar)
UCHIJAAAA voxelmap{1.7.10} [VoxelMap No Radar] (Zans-Minimap-No-Radar-Mod-1.7.10.jar)
UCHIJAAAA bspkrsCore{6.15} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.15.jar)
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['MrJellyCream'/238, l='Epic Proportions MODPACK', x=47.75, y=73.29, z=29.97]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'
OptiFine Version: OptiFine_1.7.10_HD_U_D6
Render Distance Chunks: 12
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
OpenGlVersion: 2.1 ATI-1.32.25
OpenGlRenderer: AMD Radeon HD 6750M OpenGL Engine
OpenGlVendor: ATI Technologies Inc.
CpuCount: 4

have you increased your RAM, try that.