Crash on server startup "Not enough data available"

[Pumpkin Head Guy]

Used this world file for a few weeks, suddenly there's a crash on startup 

"[00:22:41] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
com.electronwill.nightconfig.core.io.ParsingException: Not enough data available"

Here's the full error in console: https://pastebin.com/0AEAVz17

Having looked into other threads about this, I've already tried deleting the config file to no success. Fresh save doesn't experience this problem. 

Here's the debug log: https://pastebin.com/VXcMYpcJ

I'd really love to find an actual solution, but if the save is bricked I'd appreciate it if you guys could point out how I could prevent it from happening again on a backup. 

Edited December 24, 2020 by Pumpkin Head Guy

[DaemonUmbra]

Have you changed any configs? If not, delete every config.

[Pumpkin Head Guy]

No luck, unfortunately. I had adjusted a couple configs, but it removing them wouldn't have broken the game anyways so I deleted everything in the folder. Same crash. 

Config changes _had_ been disabling matrix enchanting in Quark and Ore distribution changes in Polyores. 

Here's the debug log with config files having been deleted: https://pastebin.com/

[DaemonUmbra]

Check the world save for serverconfig, clear that folder too

[Pumpkin Head Guy]

That did it! You're a saint, thank you!