Minecraft crashes every time I try to log into my modded MC world.

[Davy]

World worked perfectly fine, then one day just kicked me out and I can no longer enter it. It loads up for a second, then gone. ONLY for this specific world.

My MC world consists of 5 mods:

- OptiFine_1.12.2_HD_U_G5

- worldedit-forge-mc1.12.2-6.1.10-dist

- Pixelmon-1.12.2-8.3.6-universal

- CustomNPCs_1.12.2-(05Jul20)

- ChromaticFoliage-2.1.1

I tried re-downloading the latest version of all these mods for 1.12.2, including the latest Forge. I tried lowering down all my settings. I tried running the world on a Forge Server (it just crashes). Not sure what else to do. Plz help, lol. 🙃

Here is the crash report:

Spoiler

---- Minecraft Crash Report ----

WARNING: coremods are present:
Contact their authors BEFORE contacting forge

// Don't be sad, have a hug! ❤️

Time: 1/14/22 10:04 AM
Description: Loading NBT data

java.io.EOFException: Unexpected end of ZLIB input stream
    at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:240)
    at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
    at java.io.DataInputStream.readFully(DataInputStream.java:195)
    at java.io.DataInputStream.readUTF(DataInputStream.java:609)
    at java.io.DataInputStream.readUTF(DataInputStream.java:564)
    at net.minecraft.nbt.NBTTagCompound.func_152448_b(NBTTagCompound.java:487)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:56)
    at net.minecraft.nbt.NBTTagList.func_152446_a(NBTTagList.java:63)
    at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:497)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:58)
    at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:497)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:58)
    at net.minecraft.nbt.CompressedStreamTools.func_152455_a(CompressedStreamTools.java:133)
    at net.minecraft.nbt.CompressedStreamTools.func_152456_a(CompressedStreamTools.java:88)
    at net.minecraft.nbt.CompressedStreamTools.func_74794_a(CompressedStreamTools.java:83)
    at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:89)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.run(ChunkIOProvider.java:70)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:92)
    at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
    at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
    at net.minecraft.server.management.PlayerChunkMapEntry$1.run(PlayerChunkMapEntry.java:39)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.runCallbacks(ChunkIOProvider.java:134)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:96)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:94)
    at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
    at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
    at net.minecraft.server.management.PlayerChunkMapEntry$1.run(PlayerChunkMapEntry.java:39)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.runCallbacks(ChunkIOProvider.java:134)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:96)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:150)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:728)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:279)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Thread.java:745)

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

-- Head --
Thread: Server thread
Stacktrace:
    at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:240)
    at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
    at java.io.DataInputStream.readFully(DataInputStream.java:195)
    at java.io.DataInputStream.readUTF(DataInputStream.java:609)
    at java.io.DataInputStream.readUTF(DataInputStream.java:564)
    at net.minecraft.nbt.NBTTagCompound.func_152448_b(NBTTagCompound.java:487)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:56)
    at net.minecraft.nbt.NBTTagList.func_152446_a(NBTTagList.java:63)

-- NBT Tag --
Details:
    Tag name: Entities
    Tag type: 9
Stacktrace:
    at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:497)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:58)
    at net.minecraft.nbt.NBTTagCompound.func_152449_a(NBTTagCompound.java:497)
    at net.minecraft.nbt.NBTTagCompound.func_152446_a(NBTTagCompound.java:58)
    at net.minecraft.nbt.CompressedStreamTools.func_152455_a(CompressedStreamTools.java:133)
    at net.minecraft.nbt.CompressedStreamTools.func_152456_a(CompressedStreamTools.java:88)
    at net.minecraft.nbt.CompressedStreamTools.func_74794_a(CompressedStreamTools.java:83)
    at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:89)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.run(ChunkIOProvider.java:70)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:92)
    at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
    at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
    at net.minecraft.server.management.PlayerChunkMapEntry$1.run(PlayerChunkMapEntry.java:39)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.runCallbacks(ChunkIOProvider.java:134)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:96)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:94)
    at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
    at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
    at net.minecraft.server.management.PlayerChunkMapEntry$1.run(PlayerChunkMapEntry.java:39)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.runCallbacks(ChunkIOProvider.java:134)
    at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:96)
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:150)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:728)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:279)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Mac OS X (x86_64) version 10.15.7
    Java Version: 1.8.0_74, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 411145032 bytes (392 MB) / 1073741824 bytes (1024 MB) up to 2147483648 bytes (2048 MB)
    JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.42 Powered by Forge 14.23.5.2860 Optifine OptiFine_1.12.2_HD_U_G5 8 mods loaded, 8 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State  | ID               | Version      | Source                                   | Signature                                |
    |:------ |:---------------- |:------------ |:---------------------------------------- |:---------------------------------------- |
    | LCHIJA | minecraft        | 1.12.2       | minecraft.jar                            | None                                     |
    | LCHIJA | mcp              | 9.42         | minecraft.jar                            | None                                     |
    | LCHIJA | FML              | 8.0.99.99    | forge-1.12.2-14.23.5.2860.jar            | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | forge            | 14.23.5.2860 | forge-1.12.2-14.23.5.2860.jar            | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | chromaticfoliage | 2.1.0        | ChromaticFoliage-2.1.1.jar               | None                                     |
    | LCHIJA | customnpcs       | 1.12         | CustomNPCs_1.12.2-(05Jul20).jar          | None                                     |
    | LCHIJA | pixelmon         | 8.3.6        | Pixelmon-1.12.2-8.3.6-universal.jar      | None                                     |
    | LCHIJA | worldedit        | 6.1.10       | worldedit-forge-mc1.12.2-6.1.10-dist.jar | None                                     |

    Loaded coremods (and transformers): 
    Profiler Position: N/A (disabled)
    Player Count: 1 / 8; [EntityPlayerMP['Xcuse_My_Swagger'/195, l='world', x=-870.87, y=103.00, z=1181.10]]
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    OptiFine Version: OptiFine_1.12.2_HD_U_G5
    OptiFine Build: 20210124-142939
    Render Distance Chunks: 2
    Mipmaps: 4
    Anisotropic Filtering: 1
    Antialiasing: 0
    Multitexture: false
    Shaders: null
    OpenGlVersion: 2.1 INTEL-14.7.21
    OpenGlRenderer: Intel Iris Pro OpenGL Engine
    OpenGlVendor: Intel Inc.
    CpuCount: 4