My game crashes when I spawn an entity

Any help ?

32:11.01 [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:printToSYSOUT:103 ---- Minecraft Crash Report ----
// I let you down. Sorry :(
Time: 9/4/21 12:11 PM
Description: Unexpected error
java.lang.NullPointerException: Unexpected error
at net.minecraft.client.renderer.entity.EntityRendererManager.shouldRender(EntityRendererManager.java:232) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.WorldRenderer.updateCameraAndRender(WorldRenderer.java:925) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:600) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:422) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:924) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.run(Minecraft.java:553) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(SourceFile:204) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_265] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_265] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_265] {}
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_265] {}
at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.2.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.2.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.2.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.2.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.2.jar:?] {}
at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar:?] {}
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Render thread
Stacktrace:
at net.minecraft.client.renderer.entity.EntityRendererManager.shouldRender(EntityRendererManager.java:232)
at net.minecraft.client.renderer.WorldRenderer.updateCameraAndRender(WorldRenderer.java:925)
at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:600)
-- Affected level --
Details:
All players: 1 total; [ClientPlayerEntity['Dev'/129, l='MpServer', x=-186.50, y=64.00, z=-183.50]]
Chunk stats: Client Chunk Cache: 225, 121
Level dimension: DimensionType{minecraft:overworld}
Level name: MpServer
Level seed: -4479548394423681891
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options: {}
Level spawn location: World: (-192,64,-192), Chunk: (at 0,4,0 in -12,-12; contains blocks -192,0,-192 to -177,255,-177), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 286 game time, 286 day time
Known server brands:
Level was modded: false
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:442)
at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:1763)
at net.minecraft.client.Minecraft.run(Minecraft.java:572)
at net.minecraft.client.main.Main.main(SourceFile:204)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102)
-- System Details --
Details:
Minecraft Version: 1.15.2
Minecraft Version ID: 1.15.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_265, BellSoft
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), BellSoft
Memory: 1171749448 bytes (1117 MB) / 2670723072 bytes (2547 MB) up to 5717360640 bytes (5452 MB)
CPUs: 6
JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
ModLauncher: 5.1.2+70+master.2845bb9
ModLauncher launch target: fmluserdevclient
ModLauncher naming: mcp
ModLauncher services:
/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE
/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE
/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE
/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE
/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE
/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE
FML: 31.2
Forge: net.minecraftforge:31.2.0
FML Language Providers:
javafml@31.2
minecraft@1
Mod List:
client-extra.jar Minecraft {minecraft@1.15.2 DONE}
forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1.jar Forge {forge@31.2.0 DONE}
main Titans {titans@1.0.0 DONE}
forge-1.15.2-geckolib-2.0.0_mapped_snapshot_20200514-1.15.1.jar Geckolib {geckolib@2.0.0 DONE}
Launched Version: MOD_DEV
Backend library: LWJGL version 3.2.2 build 10
Backend API: NVIDIA GeForce GTX 1070/PCIe/SSE2 GL version 4.6.0 NVIDIA 471.96, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'forge'
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
CPU: 6x Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz
32:11.01 [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:printToSYSOUT:103 #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\tommy\MCreatorWorkspaces\titans\run\.\crash-reports\crash-2021-09-04_12.11.01-client.txt
AL lib: (EE) alc_cleanup. 1 device not closed
> Task :runClient FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':runClient'.
> Process 'command 'C:\Program Files\Pylo\MCreator\jdk\bin\java.exe'' finished with non-zero exit value -1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.3/userguide/command_line_interface.html#se…
BUILD FAILED in 3m 51s
10 actionable tasks: 4 executed, 6 up-to-date
BUILD FAILED
Task completed in 231472 milliseconds

Nope, Why ?

Sure but how to solve it ?

thx but i am actually using mcreator 2020.5 :/

Geckolib doesnt work on mcreator 2020.5...

Any help ?