Missing registry entries when using Ice and Fire

Hello! I’ve been getting the “Fatally missing registry entries” error when I try to enter my server. Removing Ice and Fire fixes the issue, but I was wondering if there’s a way to fix this without having to play without that mod. I made sure all mod versions and configs are the same for both the client and the server, but that didn’t fix it. I’m using forge-1.12.2-14.23.5.2838, and spongeforge-1.12.2-2838-7.2.3. Both server and client use jre1.8.0_261.

I also don’t understand why it tells me there are missing entries in the save even when I pregenerate the world with all mods installed.

Server log: https://gist.github.com/HiddenByNight/61f692e41779fff88201d1f548ad3137
Client log: https://gist.github.com/HiddenByNight/7c3b7c4a4c4092334f99f9fdb8ab8060

Thank you for your time.

Two things come to mind:
(1) Make sure you have the same versions of the llibrary coremod (and config) on both the client and server - client has llibrary-core-1.0.11-1.12.2.jar. I don’t know what version the server has.
(2) Don’t put SpongeForge in the client pack, unless you actually need it. All of the work is done by the server.

llibrary-1.7.19-1.12.2 is installed on both server and client, and configs are the same.