[MC-148654] Crashing constantly when loading a new world after a new one

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

Time: 4/18/19 3:55 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at bhv.a(SourceFile:57)
at bhv.a(SourceFile:69)
at buq.a(EntityRenderer.java:680)
at buq.a(EntityRenderer.java:933)
at net.optifine.shaders.ShadersRender.renderShadowMap(ShadersRender.java:284)
at net.optifine.shaders.Shaders.beginRender(Shaders.java:4097)
at buq.b(EntityRenderer.java:1592)
at buq.a(EntityRenderer.java:1384)
at bib.az(SourceFile:1023)
at bib.a(SourceFile:419)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

– Head –
Thread: Client thread
Stacktrace:
at bhv.a(SourceFile:57)
at bhv.a(SourceFile:69)
at buq.a(EntityRenderer.java:680)
at buq.a(EntityRenderer.java:933)
at net.optifine.shaders.ShadersRender.renderShadowMap(ShadersRender.java:284)
at net.optifine.shaders.Shaders.beginRender(Shaders.java:4097)
at buq.b(EntityRenderer.java:1592)

– Affected level –
Details:
Level name: MpServer
All players: 0 total; []
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 day time
Level dimension: 0
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
Forced entities: 0 total; []
Retry entities: 0 total; []
Server brand: ~_ERROR~ NullPointerException: null
Server type: Integrated singleplayer server
Stacktrace:
at bsb.a(WorldClient.java:532)
at bib.b(SourceFile:2587)
at bib.a(SourceFile:433)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

– System Details –
Details:
Minecraft Version: 1.12.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_211, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 326428416 bytes (311 MB) / 678305792 bytes (646 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.12.2-OptiFine_HD_U_E2
LWJGL: 2.9.4
OpenGL: GeForce GTX 1050 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 391.35, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Resource Packs: Greenfield-Texturepack-1.12.zip
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 12x AMD Ryzen 5 1600 Six-Core Processor
OptiFine Version: OptiFine_1.12.2_HD_U_E2
OptiFine Build: 20180728-185429
Render Distance Chunks: 13
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: Chocapic13 V6 Medium.zip
OpenGlVersion: 4.6.0 NVIDIA 391.35
OpenGlRenderer: GeForce GTX 1050 Ti/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 12