1.20.1 Server crashing from walking over certain places

[Astaphaios]

So basically what happens in that the server kicks me out when i get into some well.. random spots one could say. Server crashes and closes and after attempting to get back on it will keep crashing until I get teleported out of that place it crashed in, then the server launches no problem and the issue is gone theoretically. But when I get to that same spot again it will happen all over again. Not sure what could be causing the issue (I guess one of the mods but I haven't been able to pinpoint which one nor track the crash log to any other thread / find someone with same issue)
Any ideas? Few of such spots are quite close to the spawn/base area which quite limits the ability to build new stuff

https://pastebin.com/EZPvy5X7

[TileEntity]

Are there changes without the mod ChunkPregenerator?

Edited October 23, 2023 by TileEntity

[Astaphaios]

Asked a friend to test it out without the mod, went to the cursed chunk and the server seems to be doing all fine, no lags on the server as well (and we've had an issue with that for a moment too, never found the culprit) Could it be that it was constantly overloading the server?

[TileEntity]

maybe - it would be possible

[Astaphaios]

Well, cursed chunks seem to be gone and server is not lagging anymore but it seems to overload quite fast when exploring new areas (I've been flying around the Otherside from Deeper and Darker) and it doesn't really take long for me to get lagged out and server to crash

https://pastebin.com/nuCGQpp9

[TileEntity]

In the server.properties, set max-tick-time to -1

[Astaphaios]

Tried that and the server went down again within few minutes when discovering new chunks on elytra. (No crash log though this time, guess it's because of that tick time change?) 

[TileEntity]

Add the latest.log from your logs-folder

[Astaphaios]

https://pastebin.com/6ZW960cY
Think that's the one?
Managed to figure out what's causing the server lag meanwhile, about to fly around again to see if the server will crash again