Crashlog: https://mclo.gs/svJEhAl

No idea what caused this. Removing the mod stops the crash, so it's definitely this one causing it.

Oh, maybe optifine is the problem. does it work fine with this mod, but without optifine?

Not using optifine. There's a lot of them so the zip is too large for github, here's a drive link. https://drive.google.com/drive/folders/1S6fRHt3NnItqA5S0RsV5BDgD2ueTybtM?usp=share_link

Edit: I should note that S&R is removed from this, but I was using version 1.03.

Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: com.tterrag.registrate.util.entry.BlockEntry

I don't know why it wouldn't know about registrate. If you can send your mods in a zip, that would be helpful.

Oh, maybe optifine is the problem. does it work fine with this mod, but without optifine?

I am having the same issue but I don't have optifine installed at all.

Same problem with create(KubeJS, PonderJS, Steam rails and (stuff and additions)), KubeJS(Create and Ponder addons), clumps, lazy DFU
the downloaded mods, also the error code was 255. By doing light reading I believe the mod is improperly configured due to these logs:

org.spongepowered.asm.mixin.throwables.MixinApplyError: Mixin [mixins.railways.json:MixinReplaceTrackCheck] from phase [DEFAULT] in config [mixins.railways.json] FAILED during APPLY
Caused by: org.spongepowered.asm.mixin.throwables.MixinApplyError: Mixin [mixins.railways.json:MixinReplaceTrackCheck] from phase [DEFAULT] in config [mixins.railways.json] FAILED during APPLY

Full Log

List of items to check;

• final mod .jar file
• error log(above)
• mixins setup

pushed the issue to discord so it should be noticed

Yes Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: com.tterrag.registrate.util.entry.BlockEntry not sure why this is happening

Oh wait. You are using Create 0.5.0c, you should be using Create 0.5.0e