My little brothers Minecraft keeps crashing and it says Screen rendering error, the crash log should have everything you need to know i have updated to latest versions of java and NVIDIA, that hasn't fixed it and i have no idea on what to do next. He only has Pixelmon Reforged 6.3.4 and Optifine 1.12.2 HD_U_E2 in his mods folder, i have same things on my computer execpt for latest Java and NVIDIA, haven't ran into this issue so I am confused if anyone can help that would be great.

Crash Log:
---- Minecraft Crash Report ----

WARNING: coremods are present:
Contact their authors BEFORE contacting forge

// Shall we play a game?

Time: 8/16/18 12:38 PM
Description: Rendering screen

java.lang.NullPointerException: Rendering screen
at com.pixelmonmod.pixelmon.client.listener.MainScreenListener.onDrawScreen(MainScreenListener.java:27)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_55_MainScreenListener_onDrawScreen_DrawScreenEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:380)
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.optifine.reflect.Reflector.callVoid(Reflector.java:654)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1456)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1118)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397)
at net.minecraft.client.main.Main.main(SourceFile:123)
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.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 com.pixelmonmod.pixelmon.client.listener.MainScreenListener.onDrawScreen(MainScreenListener.java:27)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_55_MainScreenListener_onDrawScreen_DrawScreenEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:380)
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.optifine.reflect.Reflector.callVoid(Reflector.java:654)

– Screen render details –
Details:
Screen name: net.minecraft.client.gui.GuiMainMenu
Mouse location: Scaled: (320, 180). Absolute: (960, 539)
Screen size: Scaled: (640, 360). Absolute: (1920, 1080). Scale factor of 3
Stacktrace:
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1456)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1118)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397)
at net.minecraft.client.main.Main.main(SourceFile:123)
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.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 7 (amd64) version 6.1
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 405499920 bytes (386 MB) / 956301312 bytes (912 MB) up to 1073741824 bytes (1024 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.4.2750 Optifine OptiFine_1.12.2_HD_U_E2 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

Loaded coremods (and transformers):
GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 391.35' Renderer: 'GeForce GT 520/PCIe/SSE2'
Launched Version: 1.12.2-forge1.12.2-14.23.4.2750
LWJGL: 2.9.4
OpenGL: GeForce GT 520/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: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs:
Current Language: ~_ERROR~ NullPointerException: null
Profiler Position: N/A (disabled)
CPU: 4x AMD A6-3620 APU with Radeon(tm) HD Graphics
OptiFine Version: OptiFine_1.12.2_HD_U_E2
OptiFine Build: 20180728-185429
Render Distance Chunks: 9
Mipmaps: 3
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.6.0 NVIDIA 391.35
OpenGlRenderer: GeForce GT 520/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 4