Java lang nullpointexception keeps happening

I have decent system specs and have allocated 10 gbs of ram to minecraft (granted I do have a lot of mods) Every time I try to load a world it starts loading but then it says shutting down internal server and crashes. Here is the crash report 

---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 7/13/19 3:49 PM
Description: Unexpected error

java.lang.NullPointerException
    at net.minecraft.client.multiplayer.NetClientHandler.func_72519_a(NetClientHandler.java:956)
    at net.minecraft.network.packet.Packet24MobSpawn.func_73279_a(SourceFile:87)
    at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1967)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:910)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:838)
    at net.minecraft.client.main.Main.main(SourceFile:101)
    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:497)
    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 --
Stacktrace:
    at net.minecraft.client.multiplayer.NetClientHandler.func_72519_a(NetClientHandler.java:956)
    at net.minecraft.network.packet.Packet24MobSpawn.func_73279_a(SourceFile:87)
    at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)

-- Affected level --
Details:
    Level name: MpServer
    All players: 1 total; [EntityClientPlayerMP['Mink6876'/503, l='MpServer', x=220.50, y=68.62, z=162.50]]
    Chunk stats: MultiplayerChunkCache: 10
    Level seed: 0
    Level generator: ID 00 - default, ver 1. Features enabled: false
    Level generator options: 
    Level spawn location: World: (220,64,167), Chunk: (at 12,4,7 in 13,10; contains blocks 208,0,160 to 223,255,175), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
    Level time: 139 game time, 139 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: 13 total; [EntityTFNagaSegment['unknown'/1248, l='MpServer', x=0.00, y=0.00, z=0.00], EntityClientPlayerMP['Mink6876'/503, l='MpServer', x=220.50, y=68.62, z=162.50], EntityTFNagaSegment['unknown'/1237, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1238, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1239, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1240, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1241, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1242, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1243, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1244, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1245, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1246, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/1247, l='MpServer', x=0.00, y=0.00, z=0.00]]
    Retry entities: 0 total; []
    Server brand: fml,forge
    Server type: Integrated singleplayer server
Stacktrace:
    at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:440)
    at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2312)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:863)
    at net.minecraft.client.main.Main.main(SourceFile:101)
    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:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
    Minecraft Version: 1.6.4
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 241191632 bytes (230 MB) / 671088640 bytes (640 MB) up to 10737418240 bytes (10240 MB)
    JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx10G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    AABB Pool Size: 10817 (605752 bytes; 0 MB) allocated, 10817 (605752 bytes; 0 MB) used
    Suspicious classes: FML and Forge are installed
    IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
    FML: MCP v8.11 FML v6.4.50.1,345 Minecraft Forge 9.11.1.1345 25 mods loaded, 25 mods active
    mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    FML{6.4.50.1,345} [Forge Mod Loader] (minecraftforge-9.11.1.1345.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    Forge{9.11.1.1345} [Minecraft Forge] (minecraftforge-9.11.1.1345.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    NotEnoughItems{1.6.1.9} [Not Enough Items] (Not-Enough-Items-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    ArchimedesShipsMod{1.6.4 v1.4.5} [Archimedes' Ships] (Archimedes-Ships-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    Backpack{1.28.37} [Backpack] (Backpacks-Mod-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    FLabsBF{4.0} [BetterFurnaces] (Better-Furnaces-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    bspkrsCore{v5.2(1.6.4)} [bspkrsCore] (BspkrsCore-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    DamageIndicatorsMod{2.9.2.4} [Damage Indicators] (Damage-Indicators-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    Godzilla{1.2} [Godzilla Mod] (Godzilla-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    iChunUtil{2.4.0} [iChunUtil] (iChun-Util-Mod-1.6.x.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    GraviGun{2.0.0} [GraviGun] (Gravity-Gun-Mod-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    lom{104.0.0} [LotsOMobs] (LotsOMobs-Mod-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    mod_moSwordsBase{MoSwords-Base v1.7.0 for Minecraft 1.6.2} [mod_moSwordsBase] (MoSwords-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    mod_moSwordsEatable{MoSwords-Eatable-Swords v1.7.0 for Minecraft 1.6.2} [mod_moSwordsEatable] (MoSwords-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    OreSpawn{164.20} [OreSpawn] (Ore-Spawn-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    Roguelike{1.2.2} [Roguelike Dungeons Mod] (Roguelike-Dungeons-Mod-Forge-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    StartingInventory{Forge 1.6.4.r03} [StartingInventory] (Starting-Inventory-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    mod_Unlimited{3.5.1} [mod_Unlimited] (Superheroes Unlimited Mod V3.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    LOTR{Beta v14.0 for Minecraft 1.6.4} [The Lord of the Rings Mod] (The-Lord-of-the-Rings-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    TreeCapitator{Forge 1.6.4.r09} [Treecapitator] (Tree-Capitator-Mod-Forge-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    TwilightForest{1.20.5} [The Twilight Forest] (Twilight-Forest-Mod-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    mod_ZanMinimap{0.9.4} [Zan's Minimap] (VoxelMap-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    nolpfij_wildycraft{3.3.1} [Wildycraft] (Wildycraft-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
    Launched Version: 1.6.4-Forge9.11.1.1345
    LWJGL: 2.9.0
    OpenGL: GeForce GTX 960M/PCIe/SSE2 GL version 4.6.0 NVIDIA 391.25, NVIDIA Corporation
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Pack: Default
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used