So I've narrowed down my crash problem with the 1.19.3 version.

How you can replicate:
-make a world or join a world
-grab any tool/weapon/gear
-damage it then try opening your inventory or if it's viewable

Basically, whenever the display of durability occurs it crashes.

Is this Forge or Fabric?

My apologies, Fabric

Durability101-fabric-1.19.3-0.0.4.zip
Try this, rename from .zip to .jar, GitHub doesn't allow uploading jar files

Working perfectly now without any crashes. Thankies :)

Edit:
So what ended up being the problem?

It appears some Mappings changed between 1.19.2 and 1.19.3, Usually versions work without issue
https://blog.minecraftforge.net/releases/1-19-3/

Alright, well either way much appreciated! :D

Thank you @ShayBox 😊