Interesting issue with Modded Fabric Server, "java.lang.IllegalArgumentException:" and more.

[summer sun]

https://hastebin.skyra.pw/oseniziqas.sql

I have thankfully been able to initiate a Fabric Server, though after installing mods (which I extensively checked to be compatible with each other in a single player world), I got this error as soon as I booted up. I've tried countless things: making sure each mod is the latest release of 1.20.1, installing mod dependencies, switching Java versions within Pterodactyl, installing and uninstalling some mods I think would be troublesome, yet the same issue persists. Is there anything you Fabric experts notice just from the code?

More info: I installed a Fabric egg from the official egg repository, I have resource packs and data packs not listed from "Vanilla Tweaks", and the world file for the server is new (nothing has been loaded in it other than the spawn chunks-- nobody has joined).

I thank you in advance.

The picture is just the error report, the full logs are in the hastebin

One more thing: I tried manually adding the "additionalentityattributes" mod (it was not in the mods folder before) and it did not resolve the first two errors.

After a bit of tinkering I found which mod depended on additionalentityattributes, "origins", and deleted it

The same issue is happening for every other mod, however, including "balm-fabric", "waystones", and now "betterdeserttemples"

The only one that persists and stays the same is the java.lang.IllegalArgumentException

Interesting issue with Modded Fabric Server, "java.lang.IllegalArgumentException:" and more.

Edit, typo.

Newest crash log: https://hastebin.skyra.pw/ulivesuxey.sql

[summer sun]

Even more tinkering: I proceeded to delete ALL mods and the server runs fine. The moment I put even fabric.api, however, the illegalargumentexception appears yet again. No clue what's with it and these mixins.