So real quick; I apologize. I know there's a lot of these out there, but everyone has different mods that seem to be effecting them, and if there's already one that's like mine, please point me in the direction... Anyway, I recently decided I wanted to try playing on modded single-player when I don't feel like playing on servers... Well, my initial error was me needing to update forge to 1.16.2, which I did.

I'm going to try to post the entire crash report, but this is my first time so... I'm putting everything in pictures. Thank you in advance for any help available, I've also included a photo of the mods I have. I tried removing a couple and it gave me a different error, so I'm hoping there's something that can be done.

 

(here is what I removed, and the error given to me when I remove them;

ma-essentials, inventory sorter, byg, and even invtweaks

 

and here is the error given as well as the logs provided in file form)

The game crashed whilst initializing game
Error: java.lang.NoClassDefFoundError: Could not initialize class net.minecraft.util.registry.Registry

crash-2020-08-21_17.15.01-client.txt

Post your logs/debug.log.

Hey, so I found out it was the SnowRealMagic which was crashing it and giving me issues, so if anyone else has SnowRealMagic, i'd suggest making sure that is deleted/moved. ^^ Sorry for the trouble, it works now for me since I removed that!