If someone can help with figuring out what this is and why this is.
Crash log: https://pastebin.com/GY5HDxnm
I was playing minecraft on my 1.12.2 server, opened inventory to throw stuff away and game froze and then crashed. This game freezing happens somewhat often and at first I thought it would be a memory thing but I was never even close to full given memory to the game. Next thing I was thinking if it has something to do with Optifine, found some talk about similar render crash and it was Optifine causing it. Unfortunately I dont know from looking at that log.
I hope someone can help me out with this.