my minecraft crashinig 1.10.2

can someone help me my minecraft keeps crashing whenever I try entering my world I have a few mods I want to know if any has a solution to this heres the crash report hope it helps

---- Minecraft Crash Report ----

WARNING: coremods are present:
  ImprovedMobs/ASM (ImprovedMobs-1.10.2-1.3.4.jar)
  ArsMagica2-Preloader (ArsMagica2-1.10.2-1.5.0-17b.jar)
Contact their authors BEFORE contacting forge

// I let you down. Sorry

Time: 29/05/20 00:09
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
 at net.minecraft.world.World.getSkyColorBody(World.java:1477)
 at net.minecraft.world.WorldProvider.getSkyColor(WorldProvider.java:415)
 at net.minecraft.world.World.func_72833_a(World.java:1468)
 at net.minecraft.client.renderer.EntityRenderer.func_78466_h(EntityRenderer.java:1691)
 at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1243)
 at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1229)
 at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1038)
 at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1076)
 at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)
 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:497)
 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 --
Thread: Client thread
Stacktrace:
 at net.minecraft.world.World.getSkyColorBody(World.java:1477)
 at net.minecraft.world.WorldProvider.getSkyColor(WorldProvider.java:415)
 at net.minecraft.world.World.func_72833_a(World.java:1468)
 at net.minecraft.client.renderer.EntityRenderer.func_78466_h(EntityRenderer.java:1691)
 at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1243)
 at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1229)

-- Affected level --
Details:
 Level name: MpServer
 All players: 0 total; []
 Chunk stats: MultiplayerChunkCache: 0, 0
 Level seed: 0
 Level generator: ID 00 - default, ver 1. Features enabled: false
 Level generator options:
 Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
 Level time: 0 game time, 0 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: 0 total; []
 Retry entities: 0 total; []
 Server brand: ~~ERROR~~ NullPointerException: null
 Server type: Integrated singleplayer server
Stacktrace:
 at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:415)
 at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2660)
 at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:400)
 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:497)
 at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
 at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
 Minecraft Version: 1.10.2
 Operating System: Windows 7 (x86) version 6.1
 Java Version: 1.8.0_51, Oracle Corporation
 Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
 Memory: 244812296 bytes (233 MB) / 1258291200 bytes (1200 MB) up to 1258291200 bytes (1200 MB)
 JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1200M -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
 IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
 FML: MCP 9.32 Powered by Forge 12.18.3.2511 16 mods loaded, 16 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{9.19} [Minecraft Coder Pack] (minecraft.jar)
 UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2511.jar)
 UCHIJAAAA Forge{12.18.3.2511} [Minecraft Forge] (forge-1.10.2-12.18.3.2511.jar)
 UCHIJAAAA mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.10.2.jar)
 UCHIJAAAA arsmagica2{1.5.017} [Ars Magica 2] (ArsMagica2-1.10.2-1.5.0-17b.jar)
 UCHIJAAAA AnimationAPI{1.2.4} [AnimationAPI] (ArsMagica2-1.10.2-1.5.0-17b.jar)
 UCHIJAAAA Baubles{1.3.13} [Baubles] (Baubles-1.10.2-1.3.13.zip)
 UCHIJAAAA extrautils2{1.0} [Extra Utilities 2] (extrautils2-1.10.2-1.9.9.jar)
 UCHIJAAAA improvedmobs{1.3.4[1.10.2]} [Better Mob-AI] (ImprovedMobs-1.10.2-1.3.4.jar)
 UCHIJAAAA ironchest{1.10.2-7.0.15.804} [Iron Chest] (ironchest-1.10.2-7.0.15.804.jar)
 UCHIJAAAA journeymap{1.10.2-5.5.2} [JourneyMap] (journeymap-1.10.2-5.5.2.jar)
 UCHIJAAAA lootbags{2.5.0} [Loot Bags] (LootBags-1.10.2-2.5.0.jar)
 UCHIJAAAA mantle{1.10.2-1.1.5.205} [Mantle] (Mantle-1.10.2-1.1.5.jar)
 UCHIJAAAA rwbym{1.1} [RWBY Models] (rwbymodels-1.10.2-1.1.jar)
 UCHIJAAAA tconstruct{1.10.2-2.6.5.10} [Tinkers' Construct] (TConstruct-1.10.2-2.6.5.jar)
 UCHIJAAAA thaumcraft{6.0.BETA8} [Thaumcraft] (Thaumcraft-1.10.2-6.0.BETA8.jar)
 Loaded coremods (and transformers):
ImprovedMobs/ASM (ImprovedMobs-1.10.2-1.3.4.jar)
  com.flemmli97.improvedmobs.asm.ASMTransformer
ArsMagica2-Preloader (ArsMagica2-1.10.2-1.5.0-17b.jar)
  am2.asm.Transformer
 GL info: ' Vendor: 'NVIDIA Corporation' Version: '3.3.0' Renderer: 'GeForce 8400GS/PCIe/SSE2'
 Pulsar/tconstruct loaded Pulses:
  - TinkerCommons (Enabled/Forced)
  - TinkerWorld (Enabled/Not Forced)
  - TinkerTools (Enabled/Not Forced)
  - TinkerHarvestTools (Enabled/Forced)
  - TinkerMeleeWeapons (Enabled/Forced)
  - TinkerRangedWeapons (Enabled/Forced)
  - TinkerModifiers (Enabled/Forced)
  - TinkerSmeltery (Enabled/Not Forced)
  - TinkerGadgets (Enabled/Not Forced)
  - TinkerOredict (Enabled/Forced)
  - TinkerIntegration (Enabled/Forced)
  - TinkerFluids (Enabled/Forced)
  - TinkerMaterials (Enabled/Forced)
  - TinkerModelRegister (Enabled/Forced)

 Launched Version: 1.10.2-forge1.10.2-12.18.3.2511
 LWJGL: 2.9.4
 OpenGL: GeForce 8400GS/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
 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: Definitely; Client brand changed to 'fml,forge'
 Type: Client (map_client.txt)
 Resource Packs:
 Current Language: English (US)
 Profiler Position: N/A (disabled)
 CPU: 4x Intel(R) Core(TM) i3 CPU 550 @ 3.20GHz