Memory leak of some kind? modded server

[Ebb and Flow]

Hello! i created and hosted my own modpack, but I'm having some issues with performance. I'm pretty new to this whole, but I think I'm getting the hang of it

anyways, after about 10 minutes of gameplay, the desync grows and grows until i get an internal server error, kicking me out. If i try rejoining the server, the desync is still there, and i get kicked eventually. only stops when i reset the server, which leads me to believe the server has some sort of memory leak? again, i'm still new to this kinda thing. anyways, any assistance would be appreciated!

(p.s. no, the 400somethig mobs i killed(kinda on accident), and the missing villagers don't have anything to do with this, I've had the issue a few times.

I do see a lot of other error messages, but i don't really know which are contributing, or how to correct them. game plays normally most of the time)

 

logs:

client side: https://pastebin.com/v2SYiUhy

server side: https://pastebin.com/WhLkS8Y4

 

update: i also just crashed randomly from the following:

https://pastebin.com/Lr7XakKu

[ChampionAsh5357]

It says you timed out, so you could use a mod like spark to profile your server during the time when the performance issues are happening so you can see the mods that are causing it.

[Ebb and Flow]

Thank you! looks promising, ill give it a shot