Setting Tradeable to false in enchantments.cfg and trying to trade with a villager will crash the game.

crash-2025-01-24_16.03.15-server.txt

The crashing vanilla code here is:

         List<Enchantment> list = BuiltInRegistries.ENCHANTMENT.stream().filter(Enchantment::isTradeable).collect(Collectors.toList());
         Enchantment enchantment = list.get(pRandom.nextInt(list.size()));

For list.size() to be 0, it would mean you have removed every enchantment from being tradeable. This is not supported behavior by Vanilla. If you want to do this, you will need to find a mod which allows you to edit Villager trades to remove the relevant trades.

Is there a mod that makes it work?