1. I am having an issue where the server would have a large lag spike or something of the sort. I used a profiler like "laggoggles" and spotted that my NPCs are not causing lags no more (as I believe my other core's threads are helping it). The server seems to start having strange problems as it would sometimes stay at 15 tps to even 8 tps(this is where the Ticks Per Second (TPS) spike happens and interaction/NPC becomes unresponsive). I used this mod called "SPARK" to profile that lag.

I went to their discord channel and asked what could be causing this profiler log. They stated that it was

"ASM Hook Terminator"

and caused by this mod. I was wondering if someone could help me find the cause of this.

I have a few crash logs that never happened before adding this mod.

 2. (NOT including the crashes that can be solved by the deletion files within "mcmt-serdes!! Fixes crash on startup if you delete the files within MCMT-serdes of config) - MCA Reborn mod seems to be a problem 

Here is the crash without deleting MCMT-serdes. (I will include it named -----> "fixable crash report!!!!"")
A detailed walkthrough of the error, its code path, and all known details is as follows:

-- Head --
Thread: main
Stacktrace:
at mca.cobalt.registration.Registration.register(Registration.java:35) ~[mca:?] {re:classloading}

 3. These are the spark profiler that states what causes my server to lag (Not Entities anymore like previous (pre-installation of MCMT)

Spark Profiler:
https://spark.lucko.me/tG1fXh1z1o

https://spark.lucko.me/v0VPOG2IbD

 4. My Minecraft Version: 1.16.5   /    Forge Version:  Tested on (36.2.34 & 36.2.33)
 
 Crash REPORTS -

• mowziesmobs (States some stuff about it and its Entity) - https://pastebin.com/GD96xtjX
• fixable crash report (delete content in MCMT-serdes to prevent - happens with MCA Reborn mod) - https://pastebin.com/r807pyPR
• The I have no idea crash - https://pastebin.com/d1LaFQZf

My Java agus: java -Xmx20G -Xms20G -XX:+UseG1GC -Dsun.rmi.dgc.server.gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -Dsun.rmi.dgc.server.gcInterval=2147483646 -jar forge-1.16.5-36.2.33.jar nogui

Modlist:https://pastebin.com/y6xsiyQU

• (removed adaptive performance tweaker and AI-Improvements)

  6. My system - The computer I'm using is

• Intel Intel Core i7-9750H CPU 6 cores/12 threads 4.2 GHz 32GB of ram 2666mhz 2TB SSD "Still a lot of space."

• Computer/Laptop itself: https://www.amazon.com/ASUS-Computer-i7-9750H-Keyboard-Graphics/dp/B08DCL52XW
  (only difference is the RTX 2070 GPU)

If anyone could help, please help find the cause of this lag and how to fix it? I provided as much information as I could so you can help me out.

Things I have done -
LycanitesMobs - Disable dungeon generation in it's config (bug cause is unknown
disableWorldPostTick = true
enableChunkTimeout = true
enableBlankReturn = true
debug.log
debug-4.log.gz
debug-3.log.gz
debug-2.log.gz
debug-1.log.gz
mcmt-stats-log-150422-100544.602.csv