I have a very simple quest that seems to break and not load. I built a barebone quest that does produce the error. There is a missing prompt in the gui for enchantment id?
custom1:
name: Enchanting
npc-giver-id: 1
redo-delay: 1
ask-message: Please enchant an iron sword with sharpness
finish-message: Good job
stages:
ordered:
'1':
enchantments:
- Sharpness
enchantment-item-names:
- Iron_sword
enchantment-amounts:
- 1

The error my console is giving is:

ERROR: [Quests] Stage 1 of Quest Enchanting is missing enchantment-item-ids: