DaemonUmbra

Where are you getting your mods?

1.7.10 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

What are the contents of your .bat file and where did you download Forge from, please give a URL.

What happens when you try to run the .bat file?

Please do not hijack threads, if you have an issue please make your own.

Installing Forge does not wipe your mods folder, and unless you set your Launcher Profile's (or as the new launcher calls them "Installations") Game Directory all of your Forge versions will try to use the same mods folder.

Apparently they don't intend for people to just fork and go, from what I see there's several points where the lack of username/password combos will just cause Gradle to fail unless you modify the build.gradle (assuming you know what to edit)

Please provide a screenshot of your mods folder.

You also need to make sure your current directory is the one with the Forge file in. (google command line cd command)

Looks like you're trying to run a 1.7.10(or thereabouts) coremod in 1.12.2

https://micdoodle8.com/mods/galacticraft/downloads this is the mod dev's own site. As for your crash I can hardly read it, but it looks to me like optifine is colliding with another mod.

Optifine does not have a Forge-compatible release yet.

Where are you getting your mods? At least one of them has a filename that doesn't match the one you get from CurseForge.

1.8.9 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

Judging from the lack of an xray mod in the mod list I'm going to assume Forge and your hack client are disagreeing.

If you didn't specifically tell the Forge profile of your launcher to use a non-default Game Directory all worlds and settings will be shared between vanilla and forge. In other words, your world didn't "transfer", it just became shared. Also, it's not recommended to bring a modded world back to vanilla.

I have no idea because the file name doesn't include any sort of versioning. Regardless, stop using that site. Get the mods from CurseForge.

Please read the "Logs" section of my signature below and provide the appropriate log in the appropriate manner.

Looks like a repost site, read my signature for info on why this is a bad thing.

Where did you get those mods from and why is one of them extracted?

Please use Windows' snipping tool next time. Have you renamed those mods?

Stab in the dark here, but try invalidating IDEA's caches and restarting:

When you say it doesn’t give you any new logs do you mean it’s not giving you crash reports when it crashes or do you mean it works?

This is a Twitch issue, they are rehosting a corrupted version of a library, check my signature for instructions on getting a debug.log out of Twitch, those instructions will get your game working.