My friend and I have been at this for days, but I'm finally biting the bullet and asking for help. For background: we both have the mod installed, each with the correct version, and have tried repairing the modpacks they're in. The only other mod of substance in the pack is the origins mod. I can see both my custom player model and my friend's custom player model, and so can they, but when I get close (20-30 blocks) to my friend, one or both of us crash.

I've never reported an issue in this format before, so my apologies for any errors. NOTE: This is NOT an optifine issue; we do not have optifine, we have fabric and fabric versions of mods.

Crash report:

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 8/8/23 9:04 PM
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
at com.tom.cpm.client.ClientBase.renderNameTag(ClientBase.java:206)
at net.minecraft.class_1007.handler$zdm000$cpm$onRenderName2(class_1007.java:596)
at net.minecraft.class_1007.method_4213(class_1007.java:166)
at net.minecraft.class_1007.method_3926(class_1007.java:42)
at net.minecraft.class_897.method_3936(class_897.java:70)
at net.minecraft.class_922.method_4054(class_922.java:144)
at net.minecraft.class_1007.method_4215(class_1007.java:65)
at net.minecraft.class_1007.method_3936(class_1007.java:42)
at net.minecraft.class_898.method_3954(class_898.java:261)
at net.minecraft.class_761.method_22977(class_761.java:1459)
at net.minecraft.class_761.method_22710(class_761.java:1219)
at net.minecraft.class_757.method_3188(class_757.java:727)
at net.minecraft.class_757.method_3192(class_757.java:546)
at net.minecraft.class_310.method_1523(class_310.java:1048)
at net.minecraft.class_310.method_1514(class_310.java:681)
at net.minecraft.client.main.Main.main(Main.java:215)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:468)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

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

-- Head --
Thread: Render thread
Stacktrace:
at com.tom.cpm.client.ClientBase.renderNameTag(ClientBase.java:206)
at net.minecraft.class_1007.handler$zdm000$cpm$onRenderName2(class_1007.java:596)
at net.minecraft.class_1007.method_4213(class_1007.java:166)
at net.minecraft.class_1007.method_3926(class_1007.java:42)
at net.minecraft.class_897.method_3936(class_897.java:70)
at net.minecraft.class_922.method_4054(class_922.java:144)
at net.minecraft.class_1007.method_4215(class_1007.java:65)
at net.minecraft.class_1007.method_3936(class_1007.java:42)

-- Entity being rendered --
Details:
Entity Type: minecraft:player (net.minecraft.class_745)
Entity ID: 643546
Entity Name: olliesaghost
Entity's Exact location: 265.13, 67.00, -391.03
Entity's Block location: World: (265,67,-392), Chunk: (at 9,4,8 in 16,-25; contains blocks 256,0,-400 to 271,255,-385), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Entity's Momentum: 0.00, 0.42, 0.00
Entity's Passengers: []
Entity's Vehicle: ERROR NullPointerException: null

-- Renderer details --
Details:
Assigned renderer: net.minecraft.class_1007@74d82999
Location: -31.38,1.20,-5.95 - World: (-32,1,-6), Chunk: (at 0,0,10 in -2,-1; contains blocks -32,0,-16 to -17,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Rotation: -66.09375
Delta: 0.82000345
Stacktrace:
at net.minecraft.class_898.method_3954(class_898.java:261)
at net.minecraft.class_761.method_22977(class_761.java:1459)
at net.minecraft.class_761.method_22710(class_761.java:1219)
at net.minecraft.class_757.method_3188(class_757.java:727)

-- Affected level --
Details:
All players: 2 total; [class_746['SkilatiLu'/644250, l='ClientLevel', x=296.23, y=65.44, z=-385.14], class_745['olliesaghost'/643546, l='ClientLevel', x=265.13, y=67.00, z=-391.03]]
Chunk stats: Client Chunk Cache: 729, 505
Level dimension: minecraft:overworld
Level spawn location: World: (-48,64,-192), Chunk: (at 0,4,0 in -3,-12; contains blocks -48,0,-192 to -33,255,-177), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 669963620 game time, 26806002 day time
Server brand: fabric
Server type: Non-integrated multiplayer server
Stacktrace:
at net.minecraft.class_638.method_8538(class_638.java:449)
at net.minecraft.class_310.method_1587(class_310.java:2239)
at net.minecraft.class_310.method_1514(class_310.java:699)
at net.minecraft.client.main.Main.main(Main.java:215)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:468)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

-- System Details --
Details:
Minecraft Version: 1.16.5
Minecraft Version ID: 1.16.5
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: 244443288 bytes (233 MB) / 1749549056 bytes (1668 MB) up to 3817865216 bytes (3641 MB)
CPUs: 16
JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx4096m -Xms256m
Fabric Mods:
architectury: Architectury 1.32.68
cardinal-components-base: Cardinal Components API (base) 2.8.1
cardinal-components-entity: Cardinal Components API (entities) 2.8.1
cem: Custom Entity Models 0.1.2
cloth-basic-math: cloth-basic-math 0.6.1
cloth-config2: Cloth Config v4 4.17.101
completeconfig: CompleteConfig 0.17.1
cpm: Customizable Player Models 0.6.9a
entityculling: EntityCulling-Fabric 1.5.2
fabric: Fabric API 0.42.0+1.16
fabric-api-base: Fabric API Base 0.4.0+3cc0f0907d
fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.3.1+3cc0f0907d
fabric-biome-api-v1: Fabric Biome API (v1) 3.1.13+3cc0f0907d
fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.6+3cc0f0907d
fabric-command-api-v1: Fabric Command API (v1) 1.1.3+3cc0f0907d
fabric-commands-v0: Fabric Commands (v0) 0.2.3+3cc0f0907d
fabric-containers-v0: Fabric Containers (v0) 0.1.12+3cc0f0907d
fabric-content-registries-v0: Fabric Content Registries (v0) 0.2.5+3cc0f0907d
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.4+3cc0f0907d
fabric-dimensions-v1: Fabric Dimensions API (v1) 2.0.8+3cc0f0907d
fabric-entity-events-v1: Fabric Entity Events (v1) 1.2.4+3cc0f0907d
fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.4.5+3cc0f0907d
fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.2+3cc0f0907d
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.7+3cc0f0907d
fabric-item-api-v1: Fabric Item API (v1) 1.2.2+3cc0f0907d
fabric-item-groups-v0: Fabric Item Groups (v0) 0.3.1+3cc0f0907d
fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.5+3cc0f0907d
fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.2+3cc0f0907d
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 1.2.2+3cc0f0907d
fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.0.3+3cc0f0907d
fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.4+3cc0f0907d
fabric-models-v0: Fabric Models (v0) 0.3.1+3cc0f0907d
fabric-networking-api-v1: Fabric Networking API (v1) 1.0.5+3cc0f0907d
fabric-networking-blockentity-v0: Fabric Networking Block Entity (v0) 0.2.9+3cc0f0907d
fabric-networking-v0: Fabric Networking (v0) 0.3.3+3cc0f0907d
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 1.9.6+3cc0f0907d
fabric-object-builders-v0: Fabric Object Builders (v0) 0.7.3+3cc0f0907d
fabric-particles-v1: Fabric Particles (v1) 0.2.5+3cc0f0907d
fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.7.6+3cc0f0907d
fabric-renderer-api-v1: Fabric Renderer API (v1) 0.4.5+3cc0f0907d
fabric-renderer-indigo: Fabric Renderer - Indigo 0.4.5+3cc0f0907d
fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 2.3.1+3cc0f0907d
fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.1.6+3cc0f0907d
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.15+3cc0f0907d
fabric-rendering-v0: Fabric Rendering (v0) 1.1.3+3cc0f0907d
fabric-rendering-v1: Fabric Rendering (v1) 1.6.1+3cc0f0907d
fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.4.8+3cc0f0907d
fabric-screen-api-v1: Fabric Screen API (v1) 1.0.1+3cc0f0907d
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.1.6+3cc0f0907d
fabric-structure-api-v1: Fabric Structure API (v1) 1.1.12+3cc0f0907d
fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 1.1.2+3cc0f0907d
fabric-textures-v0: Fabric Textures (v0) 1.0.7+3cc0f0907d
fabric-tool-attribute-api-v1: Fabric Tool Attribute API (v1) 1.2.8+3cc0f0907d
fabric-transfer-api-v1: Fabric Transfer API (v1) 1.5.0+3cc0f0907d
fabricloader: Fabric Loader 0.14.21
fallflyinglib: FallFlyingLib 1.1.0
java: Java HotSpot(TM) 64-Bit Server VM 8
lithium: Lithium 0.6.6
minecraft: Minecraft 1.16.5
modmenu: Mod Menu 1.16.23
origins: Origins 0.7.3
reach-entity-attributes: Reach Entity Attributes 1.1.1
Launched Version: fabric-loader-0.14.21-1.16.5
Backend library: LWJGL version 3.2.2 build 10
Backend API: NVIDIA GeForce RTX 4070 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 536.40, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Graphics mode: fancy
Resource Packs: vanilla, Fabric Mods, file/Better Clear Glass 1.16.2+.zip, file/Clear Glass Pack 1.16.zip, file/Crops-3D_MC1.16.2-5_v1.2.0.zip, file/ElytraHeart.zip, file/LowOnFire 1.16+.zip
Current Language: English (US)
CPU: 16x Intel(R) Core(TM) i7-10700F CPU @ 2.90GHz