First, off, I have a lot of mods.
If this is what is affecting everything, then that makes since, but I've tried it with way less mods and is still finicky.
I'm getting mods for a playthrough, and I wanted to test them before I started. With all the mods in my mods folder for Forge 1.12.2 14.2.3.5.2854, which as far as I know if the most up-to-date version of Forge 1.12.2, it crashed while launching. I've tried increasing the ram, nothing. I've tried cutting out a lot of mods, still not working. The only time I got it to work was with only a few mods, none of which affected the actual game other than performance (Optifine, FoamFix, VanillaFix, BetterFPS, etc.). I will attach the latest log at the end, which is one with all the mods installed.
I did find a fatal error saying something about I was using the incorrect version, but now my logs don't mention fatal errors at all. I have no clue where to go with this, so if I could get help, that would be great!
Log: https://paste.ubuntu.com/p/Fm5fQ9FNPW/