---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 20.04.21 17:10
Description: Unexpected error

java.lang.IllegalStateException: Pose stack not empty
at net.minecraft.client.renderer.WorldRenderer.func_228423_a_(WorldRenderer.java:1951) ~[?:?] {re:classloading,xf:OptiFine:default}
at net.optifine.shaders.ShadersRender.renderShadowMap(ShadersRender.java:405) ~[?:?] {re:classloading}
at net.optifine.shaders.Shaders.beginRender(Shaders.java:4245) ~[?:?] {re:classloading}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:932) ~[?:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:689) ~[?:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:924) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:553) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(SourceFile:204) [?:?] {re:classloading}
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-1.15.2-31.2.50.jar:31.2] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$418/810196347.call(Unknown Source) [forge-1.15.2-31.2.50.jar:31.2] {}
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:?] {}

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.WorldRenderer.func_228423_a_(WorldRenderer.java:1951)
at net.optifine.shaders.ShadersRender.renderShadowMap(ShadersRender.java:405)
at net.optifine.shaders.Shaders.beginRender(Shaders.java:4245)
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:932)

-- Affected level --
Details:
All players: 2 total; [ClientPlayerEntity['BlackAures'/66748, l='MpServer', x=7.96, y=191.00, z=-274.09], RemoteClientPlayerEntity['SeverLevant'/37821, l='MpServer', x=7.26, y=191.00, z=-273.61]]
Chunk stats: Client Chunk Cache: 729, 637
Level dimension: DimensionType{minecraft:overworld}
Level name: MpServer
Level seed: 934184822763882444
Level generator: ID 03 - amplified, ver 0. Features enabled: false
Level generator options: {}
Level spawn location: World: (256,77,-224), Chunk: (at 0,4,0 in 16,-14; contains blocks 256,0,-224 to 271,255,-209), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 10431022 game time, 2413532 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: Non-integrated multiplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.func_72914_a(ClientWorld.java:611)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:1763)
at net.minecraft.client.Minecraft.func_99999_d(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:497)
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$418/810196347.call(Unknown Source)
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)

-- 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_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 765271736 bytes (729 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
CPUs: 8
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
ModLauncher: 5.1.2+70+master.2845bb9
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/mixin-0.8.2.jar mixin PLUGINSERVICE
/eventbus-2.2.1-service.jar eventbus PLUGINSERVICE
/forge-1.15.2-31.2.50.jar object_holder_definalize PLUGINSERVICE
/forge-1.15.2-31.2.50.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-2.1.3-shadowed.jar accesstransformer PLUGINSERVICE
/forge-1.15.2-31.2.50.jar capability_inject_definalize PLUGINSERVICE
/forge-1.15.2-31.2.50.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE
/OptiFine_1.15.2_HD_U_G6.jar OptiFine TRANSFORMATIONSERVICE
/forge-1.15.2-31.2.50.jar fml TRANSFORMATIONSERVICE
FML: 31.2
Forge: net.minecraftforge:31.2.50
FML Language Providers:
[email protected]
minecraft@1
Mod List:
forge-1.15.2-31.2.50-client.jar Minecraft {[email protected] DONE}
forge-1.15.2-31.2.50-universal.jar Forge {[email protected] DONE}
DragonSurvival-0.0.26.jar Dragon Survival {[email protected] DONE}
geckolib-forge-1.15.2-3.0.15.jar GeckoLib Example Mod {[email protected] DONE}
jei-1.15.2-6.0.3.16.jar Just Enough Items {[email protected] DONE}
Launched Version: 1.15.2-forge-31.2.50
Backend library: LWJGL version 3.2.2 build 10
Backend API: GeForce GTX 670/PCIe/SSE2 GL version 4.6.0 NVIDIA 456.71, 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: Русский (Россия)
CPU: 8x Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
OptiFine Version: OptiFine_1.15.2_HD_U_G6
OptiFine Build: 20210124-205244
Render Distance Chunks: 12
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: Sildurs Vibrant Shaders v1.283 Lite.zip
OpenGlVersion: 4.6.0 NVIDIA 456.71
OpenGlRenderer: GeForce GTX 670/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 8

Fixed in last version