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My game always not responding and crash, i don't know how to fix it. Here is the crash report:

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 3/12/16 12:22 AM
Description: Ticking entity

java.lang.OutOfMemoryError: Java heap space
at net.minecraft.network.play.server.S21PacketChunkData.func_149269_a(S21PacketChunkData.java:249)
at net.minecraft.network.play.server.S26PacketMapChunkBulk.<init>(S26PacketMapChunkBulk.java:48)
at net.minecraft.entity.player.EntityPlayerMP.func_70071_h_(EntityPlayerMP.java:270)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
at WorldServerOF.func_72870_g(WorldServerOF.java:347)
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
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 net.minecraft.network.play.server.S21PacketChunkData.func_149269_a(S21PacketChunkData.java:249)
at net.minecraft.network.play.server.S26PacketMapChunkBulk.<init>(S26PacketMapChunkBulk.java:48)
at net.minecraft.entity.player.EntityPlayerMP.func_70071_h_(EntityPlayerMP.java:270)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
at WorldServerOF.func_72870_g(WorldServerOF.java:347)

-- Entity being ticked --
Details:
Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
Entity ID: 76002
Entity Name: TheDynoFoss
Entity's Exact location: 524.28, 60.00, 464.42
Entity's Block location: World: (524,59,464), Chunk: (at 12,3,0 in 32,29; contains blocks 512,0,464 to 527,255,479), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
Entity's Momentum: 0.00, 0.00, 0.00
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)

-- Affected level --
Details:
Level name: world
All players: 1 total; [EntityPlayerMP['TheDynoFoss'/76002, l='world', x=524.28, y=60.00, z=464.42]]
Chunk stats: ServerChunkCache: 625 Drop: 0
Level seed: -6307539210142803825
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (537,70,433), Chunk: (at 9,4,1 in 33,27; contains blocks 528,0,432 to 543,255,447), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
Level time: 382574474 game time, 147000 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 126068 (now: false), thunder time: 79715 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
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: Windows 7 (x86) version 6.1
Java Version: 1.8.0_73, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 346336 bytes (0 MB) / 523501568 bytes (499 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 9, 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_C1 36 mods loaded, 36 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAAAAAAAAAAAAAAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAAAAAAAAAAAAAAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Forge{10.13.4.1614} [Minecraft Forge] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAAAAAAAAAAAAAAAAA CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar)
UCHIJAAAAAAAAAAAAAAAAAAA ivtoolkit{IvToolkit} [1.2] (minecraft.jar)
UCHIJAAAAAAAAAAAAAAAAAAA NotEnoughItems{1.0.5.118} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.118-universal.jar)
UCHIJAAAAAAAAAAAAAAAAAAA bspkrsCore{6.15} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.15.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Treecapitator{1.7.10} [Treecapitator] ([1.7.10]Treecapitator-universal-2.0.4.jar)
UCHIJAAAAAAAAAAAAAAAAAAA betterstorage{0.13.1.126} [BetterStorage] (BetterStorage-1.7.10-0.13.1.126.jar)
UCHIJAAAAAAAAAAAAAAAAAAA BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10-2.1.0.1462-universal.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights{1.3.9} [Dynamic Lights] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_onFire{1.0.5} [Dynamic Lights Burning Entity Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_creepers{1.0.4} [Dynamic Lights Creeper Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_dropItems{1.0.8} [Dynamic Lights EntityItem Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_entityClasses{1.0.1} [Dynamic Lights Entity Light Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_mobEquipment{1.0.8} [Dynamic Lights Mob Equipment Light Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_flameArrows{1.0.0} [Dynamic Lights Fiery Arrows Light Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_floodLights{1.0.2} [Dynamic Lights Flood Light] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_otherPlayers{1.0.8} [Dynamic Lights OtherPlayers Light Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA DynamicLights_thePlayer{1.1.4} [Dynamic Lights Player Light Module] (DynamicLights-1.7.10-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA flansmod{4.10.0} [Flan's Mod] (Flans Mod-1.7.10-4.10.0.jar)
UCHIJAAAAAAAAAAAAAAAAAAA ForgeMultipart{1.1.2.331} [Forge Multipart] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar)
UCHIJAAAAAAAAAAAAAAAAAAA McMultipart{1.1.2.331} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar)
UCHIJAAAAAAAAAAAAAAAAAAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Hats{4.0.1} [Hats] (Hats-4.0.1.jar)
UCHIJAAAAAAAAAAAAAAAAAAA jcanimation{1.2.4} [JCAnimationAPI] (JurassiCraft-1.4.5.jar)
UCHIJAAAAAAAAAAAAAAAAAAA llibrary{0.3.2-1.7.10} [LLibrary] (LLibrary-0.3.2-1.7.10.jar)
UCHIJAAAAAAAAAAAAAAAAAAA jurassicraft{1.4.5} [JurassiCraft] (JurassiCraft-1.4.5.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Mantle{1.7.10-0.3.2.jenkins188} [Mantle] (Mantle-1.7.10-0.3.2a.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Mekanism{8.1.7} [Mekanism] (Mekanism-1.7.10-8.1.7.252.jar)
UCHIJAAAAAAAAAAAAAAAAAAA MekanismGenerators{8.1.7} [MekanismGenerators] (MekanismGenerators-1.7.10-8.1.7.252.jar)
UCHIJAAAAAAAAAAAAAAAAAAA MekanismTools{8.1.7} [MekanismTools] (MekanismTools-1.7.10-8.1.7.252.jar)
UCHIJAAAAAAAAAAAAAAAAAAA reccomplex{0.9.6.3} [Recurrent Complex] (RecurrentComplex-0.9.6.3.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Shatter{4.0.0} [Shatter] (Shatter-4.0.0-client.jar)
UCHIJAAAAAAAAAAAAAAAAAAA TConstruct{1.7.10-1.8.7.build979} [Tinkers' Construct] (TConstruct-1.7.10-1.8.7.jar)
UCHIJAAAAAAAAAAAAAAAAAAA ForgeMicroblock{1.1.2.331} [Forge Microblocks] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar)
Mantle Environment: DO NOT REPORT THIS CRASH! Unsupported mods in environment: optifine
TConstruct Environment: Environment healthy.
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['TheDynoFoss'/76002, l='world', x=524.28, y=60.00, z=464.42]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

"java.lang.OutOfMemoryError: Java heap space" read it beforehand and see if it says something so obvious in the first line.