Reproduction Steps

Game crashes at launch. Nothing to replicate really...

Crash Report File

[(https://paste.ee/p/keq9t)]

Additional Information

This is in a test modpack environment with over 200+ other mods. Might be a compatibility issue. Here is the latest.log file
latest.log

Some of those mods in the list are for Forge. With more than 200 mods loaded, it's almost certain this issue is not caused by Sodium. And even if it was, there is just no way to know which mod it is incompatible with.

My suggestion is double checking each of your mods to make sure you are using the latest stable version for Fabric. If the issue still persists, do a binary search by disabling half of your mods until the crash doesn't happen. You can narrow down from there.

If you find an incompatibility between a specific mod and Sodium, this issue can remain open. Otherwise it should be closed as an external issue.

Try to remove "roughly enough items" and see if it eliminates your problem. Its something that i've experienced myself.

Illuminations is trying to mixin to some code we replace, and it's causing crashes. This will need to be worked around on one of our sides.

It actually looks like they already worked around this issue in Illuminations 1.0.1.1.

Fixed an issue where the game would crash upon loading the mod with Sodium

Please upgrade to the latest version of Illuminations.