Forge 43.3.5
Minecraft 1.19.2
Biomancy-forge-1.19.2-2.3.1.0.jar

I don't have the AlexsMobs mod installed and the log is littered with errors. I didn't plan to install AlexsMob in my build yet, but it just overloads the error log a bit.
Biomancy branch

Or is it related to something else? I understand it's just a notification, but then why is it red. Although the logs indicate items from Alexmob.

[12Feb2024 18:53:26.426] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/maggot_decomposing: Unknown item id 'alexsmobs:maggot'
[12Feb2024 18:53:26.430] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/void_worm_mandible_decomposing: Unknown item id 'alexsmobs:void_worm_mandible'
[12Feb2024 18:53:26.433] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/froststalker_horn_decomposing: Unknown item id 'alexsmobs:froststalker_horn'
[12Feb2024 18:53:26.436] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/dropbear_claw_decomposing: Unknown item id 'alexsmobs:dropbear_claw'
[12Feb2024 18:53:26.439] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/rattlesnake_rattle_decomposing: Unknown item id 'alexsmobs:rattlesnake_rattle'
[12Feb2024 18:53:26.452] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/komodo_spit_decomposing: Unknown item id 'alexsmobs:komodo_spit'
[12Feb2024 18:53:26.454] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/hemolymph_sac_decomposing: Unknown item id 'alexsmobs:hemolymph_sac'
[12Feb2024 18:53:26.466] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/void_worm_eye_decomposing: Unknown item id 'alexsmobs:void_worm_eye'
[12Feb2024 18:53:26.483] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/shed_snake_skin_decomposing: Unknown item id 'alexsmobs:shed_snake_skin'
[12Feb2024 18:53:26.493] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/moose_antler_decomposing: Unknown item id 'alexsmobs:moose_antler'
[12Feb2024 18:53:26.501] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/emu_feather_decomposing: Unknown item id 'alexsmobs:emu_feather'
[12Feb2024 18:53:26.504] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/blobfish_decomposing: Unknown item id 'alexsmobs:blobfish'
[12Feb2024 18:53:26.504] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/fish_bones_decomposing: Unknown item id 'alexsmobs:fish_bones'
[12Feb2024 18:53:26.507] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/centipede_leg_decomposing: Unknown item id 'alexsmobs:centipede_leg'
[12Feb2024 18:53:26.508] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/kangaroo_hide_decomposing: Unknown item id 'alexsmobs:kangaroo_hide'
[12Feb2024 18:53:26.511] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/bone_serpent_tooth_decomposing: Unknown item id 'alexsmobs:bone_serpent_tooth'
[12Feb2024 18:53:26.517] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/raccoon_tail_decomposing: Unknown item id 'alexsmobs:raccoon_tail'
[12Feb2024 18:53:26.526] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/moose_ribs_decomposing: Unknown item id 'alexsmobs:moose_ribs'
[12Feb2024 18:53:26.528] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/gazelle_horn_decomposing: Unknown item id 'alexsmobs:gazelle_horn'
[12Feb2024 18:53:26.538] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/lost_tentacle_decomposing: Unknown item id 'alexsmobs:lost_tentacle'
[12Feb2024 18:53:26.539] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/raw_catfish_decomposing: Unknown item id 'alexsmobs:raw_catfish'
[12Feb2024 18:53:26.541] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/shark_tooth_decomposing: Unknown item id 'alexsmobs:shark_tooth'
[12Feb2024 18:53:26.557] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/roadrunner_feather_decomposing: Unknown item id 'alexsmobs:roadrunner_feather'
[12Feb2024 18:53:26.558] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/kangaroo_meat_decomposing: Unknown item id 'alexsmobs:kangaroo_meat'
[12Feb2024 18:53:26.559] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/blood_sac_decomposing: Unknown item id 'alexsmobs:blood_sac'
[12Feb2024 18:53:26.561] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/crocodile_scute_decomposing: Unknown item id 'alexsmobs:crocodile_scute'
[12Feb2024 18:53:26.562] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/cachalot_whale_tooth_decomposing: Unknown item id 'alexsmobs:cachalot_whale_tooth'
[12Feb2024 18:53:26.574] [Render thread/ERROR] [net.minecraft.server.ServerAdvancementManager/]: Parsing error loading custom advancement biomancy:recipes/biomancy/decomposing/spiked_scute_decomposing: Unknown item id 'alexsmobs:spiked_scute'

This issue can be closed.
This is solely caused by my mod and has has nothing to do with Alex's Mobs.

(i didn't know conditional advancements exists, lol)

Should I close the type branch with this problem? Well, that is, it will just be in the log and not pay attention to it in the future?

Should I close the type branch with this problem? Well, that is, it will just be in the log and not pay attention to it in the future?

Yeah you can ignore it. You can download the newest version https://www.curseforge.com/minecraft/mc-mods/biomancy/files/5102762 which should fix it