Hey there, I get the same issue. I only have the package installed. Please let me know if you find how to fix. It's referring to 2 of the mods Crysosleeper and if you disable that one, it also errors on something else from another mod
my log shows:
22519 [Thread-3] ERROR com.fs.starfarer.combat.CombatMain - java.lang.NoClassDefFoundError: Could not initialize class data.plugins.AodCryosleeperPLugin
java.lang.NoClassDefFoundError: Could not initialize class data.plugins.AodCryosleeperPLugin
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.fs.starfarer.loading.scripts.ScriptStore.Object(Unknown Source)
at com.fs.starfarer.launcher.ModManager.getEnabledModPlugins(Unknown Source)
at com.fs.starfarer.loading.ResourceLoaderState.init(Unknown Source)
at com.fs.state.AppDriver.begin(Unknown Source)
at com.fs.starfarer.combat.CombatMain.main(Unknown Source)
at com.fs.starfarer.StarfarerLauncher.super(Unknown Source)
at com.fs.starfarer.StarfarerLauncher$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I ran the error through an AI tool and its likely due to mod version issues. here is what it said:
The error message in your log indicates a NoClassDefFoundError for the class data.plugins.AodCryosleeperPLugin13. This error occurs when the Java Virtual Machine (JVM) is unable to find a particular class at runtime that was available during compile time3.
In your specific case, the error suggests that the game is trying to load a plugin called AodCryosleeperPLugin, but it cannot find or initialize this class1. This is likely caused by one of the following issues:
Missing or outdated mod: The plugin might be part of a mod that is either not installed correctly or is outdated13.
Incompatible mod versions: Some mods in your list might be incompatible with each other or with your current version of Starsector14.
Corrupted game files: There might be an issue with your game installation2.
The game was just installed and this is the only mods I use. the enable mod json showed:
{"enabledMods": [
"Cryo_but_better",
"aotd_qol",
"aod_vos",
"aotd_vok",
"ashlib",
"bmo"
]}
Please someone help. I want to use this mod to play.
Hi,
Just installed the game and downloaded all the mods (download All from https://www.ashesofthedomain.info/)
With all mods enabled, I get this error:
127168 [Thread-3] ERROR com.fs.starfarer.combat.CombatMain - java.lang.NoClassDefFoundError: Could not initialize class data.plugins.AodCryosleeperPLugin
java.lang.NoClassDefFoundError: Could not initialize class data.plugins.AodCryosleeperPLugin
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.fs.starfarer.loading.scripts.ScriptStore.Object(Unknown Source)
at com.fs.starfarer.launcher.ModManager.getEnabledModPlugins(Unknown Source)
at com.fs.starfarer.loading.ResourceLoaderState.init(Unknown Source)
at com.fs.state.AppDriver.begin(Unknown Source)
at com.fs.starfarer.combat.CombatMain.main(Unknown Source)
at com.fs.starfarer.StarfarerLauncher.super(Unknown Source)
at com.fs.starfarer.StarfarerLauncher$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Any help would be greatly appreciated 
Thanks