Game crashed while starting

[Sensenmann]

Hi, i'm a long time player of Minecraft and never had any huge issues, only small ones i could figure out myself. For about 1-2 weeks now my game was randomly crashing whilst using 1.16.2 forge, sometimes my whole pc crashed. (Not happening with other games or vanilla minecraft) Since yesterday i cannot even launch 1.16.2 forge, as with mods installed the game will chrash mid loadingscreen and give this error :

The game crashed whilst rendering overlay
Error: java.lang.NullPointerException: Rendering overlay
Exit Code: -1

(Detailed file attatched)
I thought one mod caused this, but when i moved all the mods out of the mods folder and tried starting the game, i would just get stuck in an infinite loading screen, always halting at the same point (Something with shulker boxes i believe)

 

I never had this before, tried looking at similar posts, but didn't find a solution.

Thx in advance
Sensenmann

crash-2020-12-19_11.43.25-client.txt

[Sensenmann]

Here it is

debug.log

[Sensenmann]

So, if i were to delete all the config files, wouldn't the mods just rewrite them? I don't think i really changed anything important
Or is there any other way to fix it?

[Sensenmann]

Kay, so i did delete the config files, and it fixed it. Thx