---- Minecraft Crash Report ----
// Why did you do that?

Time: 10/20/20 11:18 AM
Description: Initializing game

java.lang.NoClassDefFoundError: Could not initialize class net.minecraft.util.registry.Registry
    at net.minecraft.item.ItemStack.lambda$static$3(ItemStack.java:77) ~[?:?] {re:mixin,re:classloading,xf:fml:apotheosis:apothitemusehook,xf:fml:quark:add-spacing-for-stack,pl:mixin:A}
    at net.minecraft.item.ItemStack$$Lambda$1306/1682037548.apply(Unknown Source) ~[?:?] {}
    at com.mojang.serialization.codecs.RecordCodecBuilder.create(RecordCodecBuilder.java:72) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.item.ItemStack.<clinit>(ItemStack.java:76) ~[?:?] {re:mixin,re:classloading,xf:fml:apotheosis:apothitemusehook,xf:fml:quark:add-spacing-for-stack,pl:mixin:A}
    at net.minecraft.client.settings.HotbarSnapshot.<init>(SourceFile:13) ~[?:?] {re:classloading}
    at net.minecraft.client.settings.CreativeSettings.<init>(SourceFile:30) ~[?:?] {re:classloading}
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:394) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:randompatches:RandomPatches Minecraft Transformer,pl:mixin:APP:kubejs.mixins.json:MinecraftMixin,pl:mixin:APP:shutupexperimentalsettings.mixins.json:client.MixinMinecraft,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:149) [?:?] {re:classloading,pl:runtimedistcleaner:A}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
    at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.3-34.1.24.jar:34.1] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$472/484801467.call(Unknown Source) [forge-1.16.3-34.1.24.jar:34.1] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {re:classloading}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {re:classloading}

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

-- Head --
Thread: Render thread
Stacktrace:
    at net.minecraft.item.ItemStack.lambda$static$3(ItemStack.java:77) ~[?:?] {re:mixin,re:classloading,xf:fml:apotheosis:apothitemusehook,xf:fml:quark:add-spacing-for-stack,pl:mixin:A}
    at net.minecraft.item.ItemStack$$Lambda$1306/1682037548.apply(Unknown Source) ~[?:?] {}
    at com.mojang.serialization.codecs.RecordCodecBuilder.create(RecordCodecBuilder.java:72) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.item.ItemStack.<clinit>(ItemStack.java:76) ~[?:?] {re:mixin,re:classloading,xf:fml:apotheosis:apothitemusehook,xf:fml:quark:add-spacing-for-stack,pl:mixin:A}
    at net.minecraft.client.settings.HotbarSnapshot.<init>(SourceFile:13) ~[?:?] {re:classloading}
    at net.minecraft.client.settings.CreativeSettings.<init>(SourceFile:30) ~[?:?] {re:classloading}
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:394) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:randompatches:RandomPatches Minecraft Transformer,pl:mixin:APP:kubejs.mixins.json:MinecraftMixin,pl:mixin:APP:shutupexperimentalsettings.mixins.json:client.MixinMinecraft,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.main.Main.main(Main.java:149) [?:?] {re:classloading,pl:runtimedistcleaner:A}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
    at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.3-34.1.24.jar:34.1] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$472/484801467.call(Unknown Source) [forge-1.16.3-34.1.24.jar:34.1] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {re:classloading}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {re:classloading}

-- System Details --
Details:
    Minecraft Version: 1.16.3
    Minecraft Version ID: 1.16.3
    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: 491078824 bytes (468 MB) / 1342177280 bytes (1280 MB) up to 10737418240 bytes (10240 MB)
    CPUs: 4
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx10G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    Launched Version: 1.16.3-forge-34.1.24
    Backend library: LWJGL version 3.2.2 build 10
    Backend API: NO CONTEXT
    GL Caps: 
    Using VBOs: Yes
    Is Modded: Definitely; Client brand changed to 'forge'
    Type: Client (map_client.txt)
    CPU: <unknown>

You don't need any more than 8GB of ram to play any modpack, unless you're planning to use shaders/32+ textures

 

Also All the mods has an official discord, it's a better place to ask there than here

 

However, the problem is with apotheosis/quark

Quote

at net.minecraft.item.ItemStack.lambda$static$3(ItemStack.java:77) ~[?:?] {

re:mixin,re:classloading,xf:fml:apotheosis:apothitemusehook,

xf:fml:quark:add-spacing-for-stack,pl:mixin:A}