It looks like you are using an unsupported modified version of the game.

[GoCommitDie123]

Whenever I try to run Forge on 1.13.2, this happens every single time. Please help.

Crash report says this: 

---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 6/19/19 12:29 PM
Description: Initializing game

java.lang.NullPointerException: Initializing game
    at net.minecraftforge.fml.ModLoader.buildMods(ModLoader.java:161)
    at net.minecraftforge.fml.ModLoader.lambda$loadMods$1(ModLoader.java:121)
    at net.minecraftforge.fml.ModLoader$$Lambda$1246/635340952.apply(Unknown Source)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at net.minecraftforge.fml.ModLoader.loadMods(ModLoader.java:123)
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:52)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:411)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:344)
    at net.minecraft.client.main.Main.main(SourceFile:144)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51)
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$266/566113173.call(Unknown Source)
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:19)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:35)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:58)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:44)

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

-- Head --
Thread: Client thread
Stacktrace:
    at net.minecraftforge.fml.ModLoader.buildMods(ModLoader.java:161)
    at net.minecraftforge.fml.ModLoader.lambda$loadMods$1(ModLoader.java:121)
    at net.minecraftforge.fml.ModLoader$$Lambda$1246/635340952.apply(Unknown Source)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at net.minecraftforge.fml.ModLoader.loadMods(ModLoader.java:123)
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:52)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:411)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:344)
    at net.minecraft.client.main.Main.main(SourceFile:144)
    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$266/566113173.call(Unknown Source)
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:19)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:35)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:58)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:44)

-- System Details --
Details:
    Minecraft Version: 1.13.2
    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: 1334437976 bytes (1272 MB) / 1979711488 bytes (1888 MB) up to 2147483648 bytes (2048 MB)
    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
    FML: New FML!
    Loaded coremods (and transformers): Nothing
    Launched Version: 1.13.2-forge-25.0.53
    LWJGL: 3.1.6 build 14
    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: Definitely; Client brand changed to 'forge'
    Type: Client (map_client.txt)
    Resource Packs: vanilla, file/Real Materials 1.13.zip, file/BetterVanillaBuilding15(1.13).zip
    Current Language: ~~ERROR~~ NullPointerException: null
    Profiler Position: N/A (disabled)
    CPU: 6x Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz

[DaemonUmbra]

What mods do you have installed? Could you provide a screenshot of your mods folder?