I have installed topography in my modpack and i'm not sure if it's even the problem but the game crashes while creating the world and I have no clue how to read crashlogs any help would be appreciated and it's for 1.16.5
CrashLog
I'm not sure why this is happening but my game decided it was going to crash when I went to sleep and woke up in the abyss thanks to the abyss II mod. However upon waking up in the Abyss my game froze and crashed with java.util.ConcurrentModificationException: null error it's incredibly annoying because I was in the process of recording a video for YouTube when this happened. It seems like it has something to do with quarks improved sleeping module but i'm not sure.
Crashlog
latest.log
When I launch my 1.16.4 server the server crashes with a java.lang.NoSuchMethodError: null, I have no idea how to read the 1.16.4 crashlogs nor do I know what mod is causing the issue, I've attached the crashlog to the post
crash-2020-12-20_03.26.54-server.txt
Even with morecrashinfo mod installed i'm even worse at reading crashlogs for newer minecraft versions, i'm building a 1.15.2 modpack and it's crashing at load with NullPointerException: null here is the crashlog, please help
EDIT: I Think i may have figured it out