DaemonUmbra

Don't make custom clients. This is not up for discussion.

This log is completely different, the issue in this new log is farlanders being broken when it comes to upgrading old saves

Minecraft's built-in Java runtime is incomplete, corrupt, or missing... strange. Delete C:\Program Files (x86)\Minecraft\runtime and run the launcher again

Delete C:\Users\genec\AppData\Roaming\.minecraft\config\forge-client.toml

That's not the log I asked you to provide or the way my signature says to provide it

In the future please don't post cellphone pictures, if you need to provide pictures please provide proper screenshots. What would be more helpful are logs, debug.log in particular (more info in my signature below)

If you're looking to pick a version and stick with it you're not going to have a good time. Minecraft and Forge are ever-evolving pieces of software and we only provide user/modder support for the most recent major version and the most recent old version (currently 1.16.X and 1.15.X, respetively). Most people who picked a version and stuck with it are in one of two places: 1.12.2 was the latest version for a long time before 1.13 came out and some people still complain that their favorites haven't been ported and they refuse to leave them behind and find new mods. 1.8.9 was the last version before 1.9 changed combat to not favor auto-clickers and some people can't get over that Note that we still get support requests from both of these groups even though we repeatedly say that we only support modern versions

Please don't hijack other people's threads. If you have an issue make your own in the appropriate subforum (your issue sounds more like a support request than a general discussion)

Apparently a mod config is corrupted, provide debug.log to find out which one

Version named folders are not searched anymore, the feature was dropped during the 1.12.2 -> 1.13 update because the Minecraft Launcher has an "Installations" (more like Instances or Profiles) feature now.

Please provide debug.log

Then it looks like you'll have to do things manually or wait for Twitch to update their crap.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Your best bet is searching CurseForge (no affiliation with us here at MinecraftForge) with the 1.16.3 filter enabled

Not without using one of the projects that we cannot and will not support, endorse, or advertise

Have you tried removing Optifine on your end?

First off, be patient. There is no reason to make multiple threads just a couple minutes apart. (Merged) Second, I don't understand what's so hard about "Get the Installer from the files page and run it"

Reminder: We will not be providing support for whatever you're doing with stuff that's so unbelievably ancient

Well done Vazkii, you named your mod for 1.16 while requiring 1.16.2's loader in your mods.toml

I do love when people say "I have the same issue", meaning either they have the same issue and haven't tried the fix already given to the original poster, or they don't have the same issue but think crashing is a single kind of issue.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Have you tried without Optifine?

What version of Minecraft are you using?

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.