For this type of quest, you do not need to specify an item or entity required, only an amount.
1:
name: "&2Carve 5 pumpkins."
menu_item: PUMPKIN
description:
- "&6Reward:"
- "&7A \"hello\" message from the server :)"
quest_type: CARVE
required_amount: 5
reward:
reward_type: COMMAND
commands:
- "say Hello"
1:
name: "&2Get 5 EXP levels."
menu_item: EXPERIENCE_BOTTLE
description:
- "&6Reward:"
- "&7A \"hello\" message from the server :)"
quest_type: EXP_LEVELS
required_amount: 5
reward:
reward_type: COMMAND
commands:
- "say Hello"