Please read the FAQ for how to properly post logs.
Also, this is a fabric log, not a forge log, you would probably get better results posting where fabric support is given.
You should be able to browse the available classes within net.minecraftforge.client.event through your IDE.
You can also look on github at https://github.com/MinecraftForge/MinecraftForge/tree/1.21.x/src/main/java/net/minecraftforge/client/event
No need to bump your post in less than 2 hours. If someone sees it that can help, they will reply.
If you're looking for a chat room style help, go to the forge discord.
Also, if you read the FAQ as the forum instructs you to do, and post logs as directed, that increases your chancea of getting help. I would go and do that first.
Please read the FAQ (https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/) for how to properly share logs.
The error above indicates that you need to allocate more memory to your game instance.
You would have better results asking a more specific question. What have you done? What exactly do you need help with?
Please also read the FAQ regarding posting logs.
The latest log was taken down by pastebin for some reason.
Did you try removing the mods you added? The mods you updated, was there a specific reason you updated, or just because? It's possible the updates introduced incompatibilitie, or even need a newer build of forge. If you didn't need the updates for a specific reason, you could also try downgrading those mods.
You likely either need to install java, or run jarfix.
The FAQ can tell you how to install java. If you already have it, you can get jarfix from https://johann.loefflmann.net/downloads/jarfix.exe
Please read the FAQ and post logs as decribed, along with a description of your problem . When you have an issue, create a new thread (I split your reply into a separate thread), don't hijack someone else's thread.