I'm at my wit's end. I've had this server I use to play modded survival with my brother working fine, but after the addition of some new mods, it crashes within seconds or minutes of logging in. There doesn't seem to be any correlation in how long it takes to crash. The crash reports blame the same culprit each time; Exception ticking world java.util.ConcurrentModificationException. I've deleted and re-added and updated all my newest mods but nothing seems to help. I've included the entire modlist jiic someone knows any combinations of mods that aren't compatible. All of this is in 1.12.2.
Here are the newest mods added today and their required mods:
dense metals (req. orespawn)
metamorph mod (req. mclib)
ichuns hat mod (req. ichun util)
rock candy
doggy talents
simple teleporters mod
natura mod (req. mantle mod)
Fossils and Archeology Revival mod (req. llibrary)
The rest worked fine together in the past so no worries there. And finally, the crash log:
*Note: When I ran the game w/o the fossils mod and the llibrary mod, the report would include "llibrary (llibrary-core-1.0.11-1.12.2.jar)" in between "coremods are present:" and "Contact their authors." Not sure if that means anything useful.
EDIT: I'm running my server on forge-1.12.2-14.23.5.2835-universal.
EDIT EDIT: I just saw the read first article. Didn't know there was one... I'll try that stuff right now and will update later.
EDIT EDIT EDIT: Alright, I went over everything mentioned and it didn't help/I was already doing that stuff.