Game consistently crashes. Currently unplayable. Was fine and now either hangs on world load or loads and crashes due to below: 

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 05/01/2022, 19:44
Description: Exception ticking world

java.lang.NullPointerException: Cannot invoke "com.mojang.datafixers.util.Either.left()" because "$$6" is null
    at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture getChunkRangeFuture(net.minecraft.world.level.ChunkPos,int,java.util.function.IntFunction)(ChunkMap.java:329)
    at net.minecraft.server.level.ChunkMap.com.mojang.datafixers.util.Either lambda$getChunkRangeFuture$3(int,int,int,java.util.List)(ChunkMap.java:329)
    at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646)
    at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
    at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614)
    at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1163)
    at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
    at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.void lambda$message$1(java.lang.Runnable,net.minecraft.util.thread.ProcessorHandle)(ChunkTaskPriorityQueueSorter.java:58)
    at net.minecraft.util.thread.ProcessorMailbox.boolean pollTask()(ProcessorMailbox.java:91)
    at net.minecraft.util.thread.ProcessorMailbox.int pollUntil(it.unimi.dsi.fastutil.ints.Int2BooleanFunction)(ProcessorMailbox.java:146)
    at net.minecraft.util.thread.ProcessorMailbox.void run()(ProcessorMailbox.java:102)
    at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1395)
    at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
    at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
    at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
    at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
    at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)


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

-- Head --
Thread: Server thread
Stacktrace:
    at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture getChunkRangeFuture(net.minecraft.world.level.ChunkPos,int,java.util.function.IntFunction)(ChunkMap.java:329)
    at net.minecraft.server.level.ChunkMap.com.mojang.datafixers.util.Either lambda$getChunkRangeFuture$3(int,int,int,java.util.List)(ChunkMap.java:329)
    at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646)
    at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
    at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614)
    at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1163)
    at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482)
    at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.void lambda$message$1(java.lang.Runnable,net.minecraft.util.thread.ProcessorHandle)(ChunkTaskPriorityQueueSorter.java:58)
    at net.minecraft.util.thread.ProcessorMailbox.boolean pollTask()(ProcessorMailbox.java:91)
    at net.minecraft.util.thread.ProcessorMailbox.int pollUntil(it.unimi.dsi.fastutil.ints.Int2BooleanFunction)(ProcessorMailbox.java:146)
    at net.minecraft.util.thread.ProcessorMailbox.void run()(ProcessorMailbox.java:102)

-- Affected level --
Details:
    All players: 1 total; [adj['AdieCraft'/154, l='ServerLevel[New World]', x=-1057.57, y=180.34, z=-491.64]]
    Chunk stats: 6304
    Level dimension: minecraft:overworld
    Level spawn location: World: (-240,71,-48), Section: (at 0,7,0 in -15,4,-3; chunk contains blocks -240,-64,-48 to -225,319,-33), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,-64,-512 to -1,319,-1)
    Level time: 1591 game time, 0 day time
    Level name: New World
    Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
    Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
    Known server brands: vanilla
    Level was modded: false
    Level storage version: 0x04ABD - Anvil
Stacktrace:
    at net.minecraft.server.MinecraftServer.void tickChildren(java.util.function.BooleanSupplier)(MinecraftServer.java:882)
    at net.minecraft.server.MinecraftServer.void tickServer(java.util.function.BooleanSupplier)(MinecraftServer.java:823)
    at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:823)
    at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:823)
    at net.minecraft.client.server.IntegratedServer.void tickServer(java.util.function.BooleanSupplier)(IntegratedServer.java:99)
    at net.minecraft.server.MinecraftServer.void runServer()(MinecraftServer.java:684)
    at net.minecraft.server.MinecraftServer.net.minecraft.server.MinecraftServer spin(java.util.function.Function)(MinecraftServer.java:270)
    at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:270)
    at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:270)
    at net.minecraft.server.MinecraftServer.void lambda$spin$2(java.util.concurrent.atomic.AtomicReference)(MinecraftServer.java:270)
    at java.base/java.lang.Thread.run(Thread.java:833)

-- System Details --
Details:
    Minecraft Version: 1.18.1
    Minecraft Version ID: 1.18.1
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 17.0.1, Microsoft
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
    Memory: 576821360 bytes (550 MiB) / 2147483648 bytes (2048 MiB) up to 2147483648 bytes (2048 MiB)
    CPUs: 24
    Processor Vendor: GenuineIntel
    Processor Name: Intel(R) Core(TM) i9-10920X CPU @ 3.50GHz
    Identifier: Intel64 Family 6 Model 85 Stepping 7
    Microarchitecture: Cascade Lake
    Frequency (GHz): 3.50
    Number of physical packages: 1
    Number of physical CPUs: 12
    Number of logical CPUs: 24
    Graphics card #0 name: NVIDIA GeForce RTX 2080 Ti
    Graphics card #0 vendor: NVIDIA (0x10de)
    Graphics card #0 VRAM (MB): 4095.00
    Graphics card #0 deviceId: 0x1e07
    Graphics card #0 versionInfo: DriverVersion=30.0.15.1109
    Memory slot #0 capacity (MB): 8192.00
    Memory slot #0 clockSpeed (GHz): 3.60
    Memory slot #0 type: DDR4
    Memory slot #1 capacity (MB): 8192.00
    Memory slot #1 clockSpeed (GHz): 3.60
    Memory slot #1 type: DDR4
    Memory slot #2 capacity (MB): 8192.00
    Memory slot #2 clockSpeed (GHz): 3.60
    Memory slot #2 type: DDR4
    Memory slot #3 capacity (MB): 8192.00
    Memory slot #3 clockSpeed (GHz): 3.60
    Memory slot #3 type: DDR4
    Virtual memory max (MB): 41150.01
    Virtual memory used (MB): 15714.00
    Swap memory total (MB): 8704.00
    Swap memory used (MB): 0.00
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    Server Running: true
    Player Count: 1 / 8; [adj['AdieCraft'/154, l='ServerLevel[New World]', x=-1057.57, y=180.34, z=-491.64]]
    Data Packs: vanilla
    Type: Integrated Server (map_client.txt)
    Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched