If I load my game with starlight-fabric after a few seconds after joining a server it says "Saving World" and the game crashes. I loaded a few other mods, so I dont know if its maybe just an incompatibility with another mod. I hope this helps, here is the crash report. https://paste.ee/p/Bu0Dr

I'm just a random user but for me, it looks like the crash is caused by Sodium mod. Can you try loading the game without it?

Update sodium CaffeineMC/sodium-fabric#587

I think it wasnt an actualy problem with that mod. I just have a really bad computer and from what I cant tell so far it only happens, when my computer reaches its complete hardware memory limit, because I set it too high in the comments. Maybe sodium closes the game safely, when it runs out of memory.

I am using the newest Sodium version. 0.1.0.

You are using the stable release which is very outdated. (They really should already release an update long time ago, so much bugs fixed...). Download Sodium/Next from GitHub actions like @Spottedleaf requested you to.

Ohh. My bad, I am dumb. I ment I use the 0.1.1 version from GitHub. I am sorry. Or is there an even newer versipn I dont know about? According to the sodium gradle.properties 0.1.1 is the newest version.