---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 8/24/21 12:31 AM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at by.jackraidenph.dragonsurvival.handlers.ClientEvents.lambda$onRenderHand$1(ClientEvents.java:147) ~[?:1.16.5-0.0.38] {re:classloading}
at by.jackraidenph.dragonsurvival.handlers.ClientEvents$$Lambda$6092/1692377507.accept(Unknown Source) ~[?:?] {}
at net.minecraftforge.common.util.LazyOptional.ifPresent(LazyOptional.java:165) ~[?:?] {re:mixin,re:classloading}
at by.jackraidenph.dragonsurvival.handlers.ClientEvents.onRenderHand(ClientEvents.java:145) ~[?:1.16.5-0.0.38] {re:classloading}
at net.minecraftforge.eventbus.ASMEventHandler_69_ClientEvents_onRenderHand_RenderHandEvent.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$2541/2045355881.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:162) ~[?:?] {re:classloading}
at net.minecraft.client.renderer.FirstPersonRenderer.func_228396_a_(FirstPersonRenderer.java:243) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,xf:fml:forge:bows.1,xf:fml:forge:crossbows.0,xf:fml:forge:crossbows.1,xf:fml:forge:filled_map.0,pl:mixin:APP:dragonsurvival.mixins.json:MixinFirstPersonRenderer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228381_a_(GameRenderer.java:369) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:614) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:425) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.2.jar:36.2] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$455/665988980.call(Unknown Source) [forge-1.16.5-36.2.2.jar:36.2] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}

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

-- Head --
Thread: Render thread
Stacktrace:
at by.jackraidenph.dragonsurvival.handlers.ClientEvents.lambda$onRenderHand$1(ClientEvents.java:147) ~[?:1.16.5-0.0.38] {re:classloading}
at by.jackraidenph.dragonsurvival.handlers.ClientEvents$$Lambda$6092/1692377507.accept(Unknown Source) ~[?:?] {}
at net.minecraftforge.common.util.LazyOptional.ifPresent(LazyOptional.java:165) ~[?:?] {re:mixin,re:classloading}
at by.jackraidenph.dragonsurvival.handlers.ClientEvents.onRenderHand(ClientEvents.java:145) ~[?:1.16.5-0.0.38] {re:classloading}
at net.minecraftforge.eventbus.ASMEventHandler_69_ClientEvents_onRenderHand_RenderHandEvent.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$2541/2045355881.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:162) ~[?:?] {re:classloading}
at net.minecraft.client.renderer.FirstPersonRenderer.func_228396_a_(FirstPersonRenderer.java:243) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,xf:fml:forge:bows.1,xf:fml:forge:crossbows.0,xf:fml:forge:crossbows.1,xf:fml:forge:filled_map.0,pl:mixin:APP:dragonsurvival.mixins.json:MixinFirstPersonRenderer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228381_a_(GameRenderer.java:369) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:614) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
-- Affected level --
Details:
All players: 1 total; [ClientPlayerEntity['RadicalKeag'/202, l='ClientLevel', x=332.52, y=69.00, z=-306.75]]
Chunk stats: Client Chunk Cache: 1681, 52
Level dimension: minecraft:overworld
Level spawn location: World: (-80,68,-64), Chunk: (at 0,4,0 in -5,-4; contains blocks -80,0,-64 to -65,255,-49), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 2354 game time, 2354 day time
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.func_72914_a(ClientWorld.java:447) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2029) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:628) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.2.jar:36.2] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$455/665988980.call(Unknown Source) [forge-1.16.5-36.2.2.jar:36.2] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}

-- 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: 915103136 bytes (872 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
CPUs: 4
JVM Flags: 10 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -XX:+IgnoreUnrecognizedVMOptions -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
ModLauncher: 8.0.9+86+master.3cf110c
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/mixin-0.8.2.jar mixin PLUGINSERVICE
/eventbus-4.0.0.jar eventbus PLUGINSERVICE
/forge-1.16.5-36.2.2.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.5-36.2.2.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE
/forge-1.16.5-36.2.2.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.5-36.2.2.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE
/forge-1.16.5-36.2.2.jar fml TRANSFORMATIONSERVICE
FML: 36.2
Forge: net.minecraftforge:36.2.2
FML Language Providers:
[email protected]
minecraft@1
Mod List:
forge-1.16.5-36.2.2-client.jar |Minecraft |minecraft |1.16.5 |DONE |Manifest: NOSIGNATURE
forge-1.16.5-36.2.2-universal.jar |Forge |forge |36.2.2 |DONE |Manifest: 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
DragonSurvival-1.16.5-0.0.38.jar |Dragon Survival |dragonsurvival |1.16.5-0.0.38 |DONE |Manifest: NOSIGNATURE
forge-1.16.4-geckolib-3.0.0-beta.10.jar |GeckoLib |geckolib3 |3.0.0-beta.10 |DONE |Manifest: NOSIGNATURE
Crash Report UUID: 3c8b9245-8fe6-4274-9bb2-e72e08c54e19
Launched Version: 1.16.5-forge-36.2.2
Backend library: LWJGL version 3.2.2 build 10
Backend API: Intel(R) HD Graphics 4600 GL version 4.3.0 - Build 20.19.15.5126, Intel
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'forge'
Type: Client (map_client.txt)
Graphics mode: fancy
Resource Packs: vanilla
Current Language: English (US)
CPU: 4x Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz

It appears your using a really old beta branch of GeckoLib. Updating it to the latest forge release should fix the crash.