Troubleshooting - My custom mod keeps crashing and I don't know why.

 Here is the crash report:

I don't understand how to read this to find the problem.  Usually it has to do with my json models, but I just checked all of those and they don't seem to be the problem this time.

A

    detailed walkthrough of the error, its code path and all known details is

    as follows:

---------------------------------------------------------------------------------------

--

    Head --

Thread:

    Render thread

Stacktrace:

      at com.mojang.blaze3d.platform.GLX.lambda$_initGlfw$1(GLX.java:73)

    ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}

      at net.minecraft.client.MainWindow.checkGlfwError(MainWindow.java:131)

    ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}

      at com.mojang.blaze3d.platform.GLX._initGlfw(GLX.java:72)

    ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}

      at com.mojang.blaze3d.systems.RenderSystem.initBackendSystem(RenderSystem.java:586)

    ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}

      at net.minecraft.client.Minecraft.<init>(Minecraft.java:421)

    ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}

--

    Initialization --

Details:

Stacktrace:

      at net.minecraft.client.main.Main.main(Main.java:149)

    ~[forge-1.16.5-36.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?]

    {re:classloading,pl:runtimedistcleaner:A}

      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    ~[?:1.8.0_275] {}

      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    ~[?:1.8.0_275] {}

      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    ~[?:1.8.0_275] {}

      at java.lang.reflect.Method.invoke(Method.java:498)

    ~[?:1.8.0_275] {}

      at

    net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52)

    ~[forge-1.16.5-36.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}

      at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)

    [modlauncher-8.0.9.jar:?] {}

      at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)

    [modlauncher-8.0.9.jar:?] {}

      at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)

    [modlauncher-8.0.9.jar:?] {}

      at cpw.mods.modlauncher.Launcher.run(Launcher.java:82)

    [modlauncher-8.0.9.jar:?] {}

      at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)

    [modlauncher-8.0.9.jar:?] {}

      at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105)

    [forge-1.16.5-36.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}

--