Server crashes when one player joins, Exception ticking world

[LunarBeat]

The server will boot up fine but as soon as a specific player joins the server it crashes.
I've looked this up but couldn't find anything.
 

Spoiler

---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 5/27/21 8:01 PM
Description: Exception ticking world

java.util.ConcurrentModificationException: null
    at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445) ~[?:1.8.0_292] {}
    at java.util.HashMap$KeyIterator.next(HashMap.java:1469) ~[?:1.8.0_292] {}
    at net.minecraft.world.server.ServerWorld.func_184138_a(ServerWorld.java:1017) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.markAndNotifyBlock(World.java:232) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_241211_a_(World.java:212) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_180501_a(World.java:176) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.block.BambooSaplingBlock.func_220087_a(BambooSaplingBlock.java:81) ~[?:?] {re:classloading}
    at net.minecraft.block.BambooSaplingBlock.func_225542_b_(BambooSaplingBlock.java:39) ~[?:?] {re:classloading}
    at net.minecraft.block.AbstractBlock$AbstractBlockState.func_227034_b_(AbstractBlock.java:624) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,xf:fml:forgeendertech:randomTickBlock,pl:mixin:APP:ferritecore.blockstatecache.mixin.json:AbstractBlockStateMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_217441_a(ServerWorld.java:508) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_241099_a_(ServerChunkProvider.java:362) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_292] {}
    at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:346) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:321) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:333) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292] {}

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

-- Head --
Thread: Server thread
Stacktrace:
    at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445) ~[?:1.8.0_292] {}
    at java.util.HashMap$KeyIterator.next(HashMap.java:1469) ~[?:1.8.0_292] {}
    at net.minecraft.world.server.ServerWorld.func_184138_a(ServerWorld.java:1017) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.markAndNotifyBlock(World.java:232) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_241211_a_(World.java:212) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_180501_a(World.java:176) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A}
    at net.minecraft.block.BambooSaplingBlock.func_220087_a(BambooSaplingBlock.java:81) ~[?:?] {re:classloading}
    at net.minecraft.block.BambooSaplingBlock.func_225542_b_(BambooSaplingBlock.java:39) ~[?:?] {re:classloading}
    at net.minecraft.block.AbstractBlock$AbstractBlockState.func_227034_b_(AbstractBlock.java:624) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,xf:fml:forgeendertech:randomTickBlock,pl:mixin:APP:ferritecore.blockstatecache.mixin.json:AbstractBlockStateMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_217441_a(ServerWorld.java:508) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_241099_a_(ServerChunkProvider.java:362) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_292] {}
    at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:346) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:321) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:333) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:ServerWorldMixin,pl:mixin:APP:charm.mixins.json:accessor.ServerWorldAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
-- Affected level --
Details:
    All players: 1 total; [ServerPlayerEntity['AltiSpinax5225'/939, l='ServerLevel[<3]', x=-260.58, y=83.00, z=-30.16]]
    Chunk stats: ServerChunkCache: 3391
    Level dimension: minecraft:overworld
    Level spawn location: World: (27,67,-45), Chunk: (at 11,4,3 in 1,-3; contains blocks 16,0,-48 to 31,255,-33), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
    Level time: 7687569 game time, 9078529 day time
    Level name: ❤️
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
    Level weather: Rain time: 17039 (now: true), thunder time: 11235 (now: false)
    Known server brands: forge
    Level was modded: true
    Level storage version: 0x04ABD - Anvil
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:charm.mixins.json:accessor.MinecraftServerAccessor,pl:mixin:A,pl:runtimedistcleaner:A}
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292] {}

-- System Details --
Details:
    Minecraft Version: 1.16.5
    Minecraft Version ID: 1.16.5
    Operating System: Linux (amd64) version 5.4.0-72-generic
    Java Version: 1.8.0_292, Private Build
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Private Build
    Memory: 1979799384 bytes (1888 MB) / 4116709376 bytes (3926 MB) up to 5726797824 bytes (5461 MB)
    CPUs: 4
    JVM Flags: 2 total; -Xms1G -Xmx6G
    ModLauncher: 8.0.9+86+master.3cf110c
    ModLauncher launch target: fmlserver
    ModLauncher naming: srg
    ModLauncher services:
        /mixin-0.8.2.jar mixin PLUGINSERVICE
        /eventbus-4.0.0.jar eventbus PLUGINSERVICE
        /forge-1.16.5-36.1.23.jar object_holder_definalize PLUGINSERVICE
        /forge-1.16.5-36.1.23.jar runtime_enum_extender PLUGINSERVICE
        /accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE
        /forge-1.16.5-36.1.23.jar capability_inject_definalize PLUGINSERVICE
        /forge-1.16.5-36.1.23.jar runtimedistcleaner PLUGINSERVICE
        /mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE
        /forge-1.16.5-36.1.23.jar fml TRANSFORMATIONSERVICE
    FML: 36.1
    Forge: net.minecraftforge:36.1.23
    FML Language Providers:
        [email protected]
        minecraft@1
    Mod List:
        Cucumber-1.16.4-4.1.9.jar                         |Cucumber Library              |cucumber                      |4.1.9               |DONE      |NOSIGNATURE
        NetherPortalFix_1.16.3-7.2.1.jar                  |NetherPortalFix               |netherportalfix               |7.2.1               |DONE      |NOSIGNATURE
        bagofyurting-1.16.4-1.2.0.1.jar                   |Bag of Yurting                |bagofyurting                  |1.2.0.1             |DONE      |NOSIGNATURE
        jei-1.16.5-7.7.0.99.jar                           |Just Enough Items             |jei                           |7.7.0.99            |DONE      |NOSIGNATURE
        abnormals_core-1.16.5-3.1.1.jar                   |Abnormals Core                |abnormals_core                |3.1.1               |DONE      |NOSIGNATURE
        Scannable-MC1.16.5-1.7.3.17.jar                   |Scannable                     |scannable                     |1.7.3.17            |DONE      |NOSIGNATURE
        goblintraders-1.4.0-1.16.3.jar                    |Goblin Traders                |goblintraders                 |1.4.0               |DONE      |NOSIGNATURE
        mcw-windows-1.0.3-mc1.16.5.jar                    |Macaw's Windows               |mcwwindows                    |1.0.3               |DONE      |NOSIGNATURE
        pitg-1.16.3-1.4.2.jar                             |Pane In The Glass             |pitg                          |1.16.3-1.4.2        |DONE      |NOSIGNATURE
        Guide-API-VP-1.16.4-2.2.1.jar                     |Guide-API VP                  |guideapi-vp                   |2.2.1               |DONE      |NOSIGNATURE
        extraboats-1.16.5-2.1.0.jar                       |Extra Boats                   |extraboats                    |2.1.0               |DONE      |NOSIGNATURE
        create-mc1.16.5_v0.3.1c.jar                       |Create                        |create                        |mc1.16.5_v0.3.1c+151|DONE      |NOSIGNATURE
        Waystones_1.16.5-7.5.1.jar                        |Waystones                     |waystones                     |7.5.1               |DONE      |NOSIGNATURE
        ForgeEndertech-1.16.4-7.1.0.0-build.0075.jar      |Forge Endertech               |forgeendertech                |7.1.0.0             |DONE      |NOSIGNATURE
        mcw-paintings-1.0.1-mc1.16.5.jar                  |Macaw's Paintings             |mcwpaintings                  |1.0.1               |DONE      |NOSIGNATURE
        Clumps-6.0.0.24.jar                               |Clumps                        |clumps                        |6.0.0.24            |DONE      |NOSIGNATURE
        XaerosWorldMap_1.14.1_Forge_1.16.5.jar            |Xaero's World Map             |xaeroworldmap                 |1.14.1              |DONE      |NOSIGNATURE
        Controlling-7.0.0.18.jar                          |Controlling                   |controlling                   |7.0.0.18            |DONE      |NOSIGNATURE
        comforts-forge-1.16.5-4.0.0.4.jar                 |Comforts                      |comforts                      |1.16.5-4.0.0.4      |DONE      |NOSIGNATURE
        NaturesCompass-1.16.5-1.8.6.jar                   |Nature's Compass              |naturescompass                |1.16.5-1.8.6        |DONE      |NOSIGNATURE
        SimpleStorageNetwork-1.16.5-1.3.5.jar             |Simple Storage Network        |storagenetwork                |1.16.5-1.3.5        |DONE      |1f:47:ac:b1:61:82:96:b8:47:19:16:d2:61:81:11:60:3a:06:4b:61:31:56:7d:44:31:1e:0c:6f:22:5b:4c:ed
        Bookshelf-1.16.5-10.0.8.jar                       |Bookshelf                     |bookshelf                     |10.0.8              |DONE      |eb:c4:b1:67:8b:f9:0c:db:dc:4f:01:b1:8e:61:64:39:4c:10:85:0b:a6:c4:c7:48:f0:fa:95:f2:cb:08:3a:e5
        BotanyPots-1.16.5-7.0.17.jar                      |BotanyPots                    |botanypots                    |7.0.17              |DONE      |eb:c4:b1:67:8b:f9:0c:db:dc:4f:01:b1:8e:61:64:39:4c:10:85:0b:a6:c4:c7:48:f0:fa:95:f2:cb:08:3a:e5
        u_team_core-1.16.5-3.2.1.195.jar                  |U Team Core                   |uteamcore                     |3.2.1.195           |DONE      |f4:a6:0b:ee:cb:8a:1a:ea:9f:9d:45:91:8f:8b:b3:ae:26:f3:bf:05:86:1d:90:9e:f6:32:2a:1a:ed:1d:ce:b0
        mcw-doors-1.0.2-mc1.16.5.jar                      |Macaw's Doors                 |mcwdoors                      |1.0.2               |DONE      |NOSIGNATURE
        Morpheus-1.16.5-4.2.70.jar                        |Morpheus                      |morpheus                      |4.2.70              |DONE      |NOSIGNATURE
        bedspreads-forge-1.16.5-5.1.0.2.jar               |Bedspreads                    |bedspreads                    |1.16.5-5.1.0.2      |DONE      |NOSIGNATURE
        mahoutsukai-1.16.5-v1.31.5.jar                    |Mahou Tsukai                  |mahoutsukai                   |1.16.5-v1.31.5      |DONE      |NOSIGNATURE
        JustEnoughResources-1.16.5-0.12.1.114.jar         |Just Enough Resources         |jeresources                   |0.12.1.114          |DONE      |NOSIGNATURE
        VampiresNeedUmbrellas-1.16.5-1.1.2.jar            |Vampires Need Umbrellas       |vampiresneedumbrellas         |1.1.2               |DONE      |NOSIGNATURE
        forge-1.16.5-36.1.23-universal.jar                |Forge                         |forge                         |36.1.23             |DONE      |22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
        twilightforest-1.16.5-4.0.482-universal.jar       |The Twilight Forest           |twilightforest                |NONE                |DONE      |NOSIGNATURE
        MysticalAgriculture-1.16.4-4.1.8.jar              |Mystical Agriculture          |mysticalagriculture           |4.1.8               |DONE      |NOSIGNATURE
        MysticalAgradditions-1.16.4-4.1.5.jar             |Mystical Agradditions         |mysticalagradditions          |4.1.5               |DONE      |NOSIGNATURE
        ironchest-1.16.4-11.2.10.jar                      |Iron Chests                   |ironchest                     |1.16.4-11.2.10      |DONE      |NOSIGNATURE
        forge-1.16.5-36.1.23-server.jar                   |Minecraft                     |minecraft                     |1.16.5              |DONE      |NOSIGNATURE
        TConstruct-1.16.5-3.0.3.152.jar                   |Tinkers' Construct            |tconstruct                    |3.0.3.152           |DONE      |NOSIGNATURE
        mcw-bridges-1.0.5-mc1.16.5-4.jar                  |Macaw's Bridges               |mcwbridges                    |1.0.5               |DONE      |NOSIGNATURE
        useful_backpacks-1.16.5-1.12.0.89.jar             |Useful Backpacks              |usefulbackpacks               |1.12.0.89           |DONE      |f4:a6:0b:ee:cb:8a:1a:ea:9f:9d:45:91:8f:8b:b3:ae:26:f3:bf:05:86:1d:90:9e:f6:32:2a:1a:ed:1d:ce:b0
        repurposed_structures-1.16.5-2.6.6-forge.jar      |Repurposed Structures         |repurposed_structures         |1.16.5-2.6.6-forge  |DONE      |NOSIGNATURE
        theoneprobe-1.16-3.1.4.jar                        |The One Probe                 |theoneprobe                   |1.16-3.1.4          |DONE      |NOSIGNATURE
        mcw-trapdoors-1.0.2-mc1.16.5.jar                  |Macaw's Trapdoors             |mcwtrpdoors                   |1.0.2               |DONE      |NOSIGNATURE
        mcw-fences-1.0.0-mc1.16.5.jar                     |Macaw's Fences and Walls      |mcwfences                     |1.0.0               |DONE      |NOSIGNATURE
        AdLods-1.16.4-4.1.5.1-build.0118.jar              |Large Ore Deposits            |adlods                        |4.1.5.1             |DONE      |NOSIGNATURE
        simplefarming-1.16.5-1.3.6.jar                    |Simple Farming                |simplefarming                 |1.16.4-1.3.6        |DONE      |NOSIGNATURE
        Botania-1.16.5-416.jar                            |Botania                       |botania                       |1.16.5-416          |DONE      |NOSIGNATURE
        fairylights-4.0.5-1.16.5.jar                      |Fairy Lights                  |fairylights                   |4.0.5               |DONE      |NOSIGNATURE
        tinkersbettercompat-0.2-1.16.5-36.1.0.jar         |Tinkers Better Compat         |bettercompat                  |0.2                 |DONE      |NOSIGNATURE
        jeiintegration_1.16.5-7.0.1.15.jar                |JEI Integration               |jeiintegration                |7.0.1.15            |DONE      |NOSIGNATURE
        dimdungeons-1.11-forge-1.16.5.jar                 |Dimensional Dungeons          |dimdungeons                   |1.16.4-1.11         |DONE      |NOSIGNATURE
        curios-forge-1.16.5-4.0.5.1.jar                   |Curios API                    |curios                        |1.16.5-4.0.5.1      |DONE      |NOSIGNATURE
        eidolon-0.2.7.jar                                 |Eidolon                       |eidolon                       |0.2.7               |DONE      |NOSIGNATURE
        Patchouli-1.16.4-51.jar                           |Patchouli                     |patchouli                     |1.16.4-51           |DONE      |NOSIGNATURE
        Mantle-1.16.5-1.6.97.jar                          |Mantle                        |mantle                        |1.6.97              |DONE      |NOSIGNATURE
        Xaeros_Minimap_21.8.2_Forge_1.16.5.jar            |Xaero's Minimap               |xaerominimap                  |21.8.2              |DONE      |NOSIGNATURE
        gravestone-1.16.5-1.0.4.jar                       |Gravestone Mod                |gravestone                    |1.16.5-1.0.4        |DONE      |NOSIGNATURE
        polymorph-forge-1.16.5-0.24.jar                   |Polymorph                     |polymorph                     |1.16.5-0.24         |DONE      |NOSIGNATURE
        AutoRegLib-1.6-49.jar                             |AutoRegLib                    |autoreglib                    |1.6-49              |DONE      |NOSIGNATURE
        AkashicTome-1.4-16.jar                            |Akashic Tome                  |akashictome                   |1.4-16              |DONE      |NOSIGNATURE
        OreExcavation-1.8.157.jar                         |Ore Excavation                |oreexcavation                 |1.8.157             |DONE      |e7:68:1c:0d:b9:7e:cf:f8:f3:40:9c:84:c5:39:d7:a4:59:78:b0:6b:c3:fd:b7:4f:69:18:a3:88:e3:76:8c:3f
        blockcarpentry-1.16-0.3.5b.jar                    |BlockCarpentry                |blockcarpentry                |1.16-0.3.5b         |DONE      |NOSIGNATURE
        elevatorid-1.16.5-1.7.13.jar                      |Elevator Mod                  |elevatorid                    |1.16.5-1.7.13       |DONE      |NOSIGNATURE
        mcw-roofs-2.0.1-mc1.16.5-4.jar                    |Macaw's Roofs                 |mcwroofs                      |2.0.1               |DONE      |NOSIGNATURE
        cfm-7.0.0pre21-1.16.3.jar                         |MrCrayfish's Furniture Mod    |cfm                           |7.0.0-pre21         |DONE      |NOSIGNATURE
        AppleSkin-mc1.16.2-forge-1.0.14.jar               |AppleSkin                     |appleskin                     |1.0.14              |DONE      |NOSIGNATURE
        Vampirism-1.16.4-1.7.10.jar                       |Vampirism                     |vampirism                     |1.7.10              |DONE      |NOSIGNATURE
        VampirismIntegrations-1.16.4-1.5.0.jar            |Vampirism Integrations        |vampirism_integrations        |1.5.0               |DONE      |NOSIGNATURE
        ferritecore-2.0.4-forge.jar                       |Ferrite Core                  |ferritecore                   |2.0.4               |DONE      |41:ce:50:66:d1:a0:05:ce:a1:0e:02:85:9b:46:64:e0:bf:2e:cf:60:30:9a:fe:0c:27:e0:63:66:9a:84:ce:8a
        mcw-furniture-2.0.1-mc1.16.5.jar                  |Macaw's Furniture             |mcwfurnitures                 |2.0.1               |DONE      |NOSIGNATURE
        solcarrot-1.16.3-1.9.10.jar                       |Spice of Life: Carrot Edition |solcarrot                     |1.16.3-1.9.10       |DONE      |NOSIGNATURE
        Aquaculture-1.16.5-2.1.19.jar                     |Aquaculture 2                 |aquaculture                   |1.16.5-2.1.19       |DONE      |NOSIGNATURE
        charm-forge-1.16.5-2.3.2.jar                      |Charm                         |charm                         |2.3.2               |DONE      |NOSIGNATURE
        charmonium-forge-1.16.5-2.3.2.jar                 |Charmonium                    |charmonium                    |2.3.2               |DONE      |NOSIGNATURE
        FastLeafDecay-v25.jar                             |FastLeafDecay                 |fastleafdecay                 |v25                 |DONE      |NOSIGNATURE
        geckolib-forge-1.16.5-3.0.36.jar                  |GeckoLib                      |geckolib3                     |3.0.36              |DONE      |NOSIGNATURE
        ars_nouveau-1.16.5-1.17.jar                       |Ars Nouveau                   |ars_nouveau                   |1.17                |DONE      |NOSIGNATURE
        xptome-1.16.5-v2.1.2.jar                          |XP Tome                       |xpbook                        |v2.1.2              |DONE      |NOSIGNATURE
    Crash Report UUID: 2aeb279c-bb23-41ff-bbf1-bc5ff0dcb6ed
    Player Count: 2 / 20; [ServerPlayerEntity['StairLizard'/42, l='ServerLevel[<3]', x=4.67, y=156.00, z=-3366.56], ServerPlayerEntity['AltiSpinax5225'/939, l='ServerLevel[<3]', x=-260.58, y=83.00, z=-30.16]]
    Data Packs: vanilla, mod:cucumber, mod:netherportalfix (incompatible), mod:bagofyurting (incompatible), mod:jei, mod:abnormals_core, mod:scannable (incompatible), mod:goblintraders, mod:mcwwindows, mod:guideapi-vp (incompatible), mod:extraboats, mod:create, mod:waystones (incompatible), mod:forgeendertech, mod:mcwpaintings (incompatible), mod:clumps, mod:xaeroworldmap, mod:controlling, mod:comforts, mod:naturescompass (incompatible), mod:storagenetwork, mod:bookshelf, mod:botanypots, mod:uteamcore, mod:mcwdoors, mod:morpheus (incompatible), mod:mahoutsukai (incompatible), mod:jeresources, mod:vampiresneedumbrellas (incompatible), mod:forge, mod:twilightforest, mod:mysticalagriculture, mod:mysticalagradditions, mod:ironchest (incompatible), mod:tconstruct (incompatible), mod:mcwbridges, mod:usefulbackpacks, mod:repurposed_structures, mod:theoneprobe, mod:mcwtrpdoors (incompatible), mod:mcwfences, mod:adlods, mod:simplefarming, mod:botania, mod:bettercompat, mod:jeiintegration, mod:dimdungeons, mod:curios, mod:eidolon, mod:patchouli (incompatible), mod:mantle (incompatible), mod:xaerominimap, mod:gravestone, mod:autoreglib (incompatible), mod:akashictome, mod:oreexcavation, mod:elevatorid, mod:mcwroofs, mod:cfm (incompatible), mod:appleskin, mod:vampirism, mod:vampirism_integrations (incompatible), mod:ferritecore (incompatible), mod:mcwfurnitures, mod:solcarrot (incompatible), mod:aquaculture (incompatible), mod:charm, mod:charmonium (incompatible), mod:fastleafdecay (incompatible), mod:geckolib3 (incompatible), mod:ars_nouveau, mod:xpbook, mod:pitg (incompatible), mod:bedspreads, mod:fairylights, mod:blockcarpentry (incompatible), mod:polymorph
    Is Modded: Definitely; Server brand changed to 'forge'
    Type: Dedicated Server (map_server.txt)

Debug log: https://gist.github.com/LunarBeat/68855d8ba1c04d2682b94036392df633

[LunarBeat]

Rolling the character back to his dat_old file worked and it no longer crashes. If anyone could still inform me why it was crashing that would be great, but this is technically solved.