Before Continuing:

• Always check you are using the latest version of the mods and its dependencies
• Remove mod that enhances Minecraft: Optifine, Sodium, others. The issue persists.
• If you are unsure which mod is the culprit.
  Disable all of your mods and enable them 1-2 mods each time to isolate the culprit
• Confirm that there is no existing issue with a similar description submitted in the list of issues.

Version

1.20.1-FORGE

Supplementaries Version

supplementaries-1.20-2.8.0

Moonlight Lib Version

moonlight-1.20-2.10.0-forge

Issue Detail

[Worker-Main-11/ERROR] [net.minecraft.tags.TagLoader/]: Couldn't load tag minecraft:candles as it is missing following references: 
	supplementaries:skull_candle (from supplementaries-1.20-2.8.0.jar)

I guess the skull_candle block was moved to Amendments, but its block tag entry was never removed from Supplementaries.

fixed