Here's the updated issue report:

Describe the bug Various mods, especially Neruina and player-animation-lib, experience animation handling errors, primarily IndexOutOfBoundsException, related to player and custom entity animations. These errors disrupt gameplay, potentially causing crashes or making specific animations fail. Errors also appear in Distant Horizons, Blueprint, Integrated API, and villager trade registration, which may relate to mod compatibility and database/resource loading.

To Reproduce Steps to reproduce the behavior:

Launch Minecraft with mods: Neruina, player-animation-lib, Distant Horizons, Blueprint, Integrated API, and other mods affecting villager trades and entities.
Create or load a world.
Interact with entities (custom entities, villagers) or navigate through modded dimensions (e.g., Twilight Forest).
Observe animation issues, missing recipes, or loading errors.
Screenshots N/A (based on log-reported errors)

Environment Information

Minecraft Version: 1.20.1
Forge Version: 47.3.7
Mods Involved:
Neruina v2.1.2
player-animation-lib v1.0.2-rc1
Distant Horizons, Blueprint, Integrated API, End Remastered, Samurai Dynasty, Croptopia

quotes from old Latest logs after Nerunia triggered a crash to main menu on single player world load up:

java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
at dev.kosmx.playerAnim.api.layered.ModifierLayer.removeModifier(ModifierLayer.java:70) ~[player-animation-lib-forge-1.0.2-rc1+1.20.jar!/:?]
at net.minecraft.client.player.AbstractClientPlayer.playAnimation(AbstractClientPlayer.java:937) ~[client-1.20.1.jar!/:?]
...

Distant Horizons (Database Connection Error):
[DH-LOD Update Propagator Thread[3]/WARN]: Attempted to insert [FullDataSourceV2DTO] on closed repo [jdbc:sqlite:...].

Blueprint (Resource Loading Error):
java.lang.IllegalArgumentException: null during palette loading for decorative pots with biomemakeover and clayworks.

Villager Trade Registration (Null Errors):
NullPointerException in Integrated API during villager trade registration, affecting JustEnoughResources (JER) and JEI.

[LATEST LOG}:
latest.log