I have been hosting this server for myself and friends and have been trying to figure out how to make it better. I figured I should start posting here to communicate with anyone working on it and help out if at all possible. This current issue happens consistently and I am trying to discover what is causing it.

I have max-tick-time disabled (-1).
happens about once an hour.

[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:00] [Worker-Main-438/INFO] [bettercaves/]: CREATING AND INIT'ING CARVER W DIMENSION minecraft:overworld...
[13:40:00] [Worker-Main-438/INFO] [bettercaves/]: Reading Better Caves config from file for dimension minecraft:overworld...
[13:40:00] [Worker-Main-438/INFO] [bettercaves/]: Using block 'minecraft:lava' as lava in cave generation for dimension minecraft:overworld
[13:40:00] [Worker-Main-438/INFO] [bettercaves/]: Using block 'Block{minecraft:water}[level=0]' as water in cave generation for dimension minecraft:overworld
[13:40:00] [Worker-Main-434/INFO] [betterdefaultbiomes/]: Swamp trees added to: TRAVERSE:LUSH_SWAMP
[13:40:00] [Worker-Main-434/INFO] [betterdefaultbiomes/]: Palm trees added to: MINECRAFT:BEACH
[13:40:00] [Worker-Main-434/INFO] [betterdefaultbiomes/]: Swamp trees added to: MINECRAFT:SWAMP_HILLS
[13:40:00] [Worker-Main-434/INFO] [betterdefaultbiomes/]: Swamp trees added to: MINECRAFT:SWAMP
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/WARN] [minecraft/MinecraftServer]: Can't keep up! Is the server overloaded? Running 2023ms or 40 ticks behind
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: dungeons_enhanced:battle_tower
[13:40:01] [Server thread/ERROR] [minecraft/ChunkSerializer]: Unknown structure start: better mineshaft
[13:41:31] [Server thread/INFO] [minecraft/ServerPlayNetHandler]: Bigpapadon lost connection: Disconnected
[13:41:31] [Server thread/INFO] [minecraft/DedicatedServer]: Bigpapadon left the game
[13:42:22] [Server thread/WARN] [minecraft/MinecraftServer]: Can't keep up! Is the server overloaded? Running 126228ms or 2524 ticks behind

Can you do me a favor by going to your server directory, navigating to [server]/config/apotheosis/affixes.cfg? I believe I know the fix for this.

And upload it here, if possible. I skipped a step there, apologies.

affixes.txt
Here is the affixes file and yeah i can get on discord

If you have Discord, I would be willing to chat with you there as well. That may work a bit better than a slightly slower back and forth here.

Ah, yep, it's the old config. Let me get you the new one, it should fix the problem entirely.

affixes.txt

awesome thank you!

No problem! Let me know if the problem persists, I'll close the issue for now.