HELP, please.
the prefix doesn't work can you help me?

---

groups:
Member:
build: true
permissions:
- essentials.help
- essentials.rules
- essentials.motd
- essentials.afk
- essentials.back
- essentials.back.ondeath
- essentials.depth
- essentials.delhome
- essentials.help
- essentials.home
- essentials.kit
- essentials.kit.tools
- essentials.list
- essentials.mail
- essentials.tptoggle
- essentials.mail.send
- essentials.me
- essentials.motd
- essentials.msg
- essentials.ping
- essentials.r
- essentials.rules
- essentials.seen
- essentials.sethome
- essentials.signs.use.disposal
- essentials.spawn
- essentials.suicide
- essentials.tpa
- essentials.tpaccept
- essentials.tpahere
- essentials.tpdeny
- essentials.helpop
- essentials.workbench
- essentials.balance
- essentials.balance.others
- essentials.balance
- essentials.pay
- essentials.sell
- essentials.ignore
- essentials.list
- essentials.near
- essentials.recipe
- essentials.seen
- essentials.clearinventory
options:
prefix: '&2[&aMember&2]&7 '
suffix: ' [Member]'
default: true
VIP:
inheritance:
- Member
build: true
permissions:
- essentials.help
- essentials.rules
- essentials.motd
- essentials.feed
- essentials.heal
- essentials.ptime
- essentials.repair
- essentials.enderchest
- essentials.chat.color
- essentials.signs.color
options:
prefix: '&6[&eVIP&6]&7 '
default: false
Mod:
inheritance:
- VIP
- Member
build: true
permissions:
- essentials.sethome.multiple.staff
- essentials.helpop
- essentials.home.others
- essentials.nick
- essentials.warp
- essentials.warp.list
- essentials.fly
- essentials.kick
- essentials.mute
- essentials.feed
- essentials.hat
- essentials.heal
- essentials.ptime
- essentials.repair
- essentials.repair.armor
- essentials.repair.enchanted
- essentials.repair.all
- essentials.speed
- essentials.list.hidden
- essentials.seen.banreason
- essentials.ban
- essentials.broadcast
- essentials.enderchest
- essentials.enderchest.others
- essentials.invsee
- essentials.invsee.modify
- essentials.lightning.others
- essentials.mute
- essentials.tempban
- essentials.spawn.others
- essentials.delwarp
- essentials.home.others
options:
prefix: '&1[&9Mod&1]&f '
default: false
admin:
inheritance:
- Mod
build: true
permissions:
- essentials.enchant
- essentials.feed
- essentials.fly
- essentials.give
- essentials.hat
- essentials.heal
- essentials.more
- essentials.ptime
- essentials.repair
- essentials.repair.armor
- essentials.repair.enchanted
- essentials.repair.all
- essentials.speed
- essentials.time.set
- essentials.whois
- essentials.ban.offline
- essentials.ban.notify
- essentials.banip
- essentials.ban.notify
- essentials.clearinventory.others
- essentials.deljail
- essentials.enderchest
- essentials.enderchest.others
- essentials.enderchest.modify
- essentials.fireball
- essentials.invsee
- essentials.invsee.modify
- essentials.invsee.preventmodify
- essentials.jails
- essentials.kick
- essentials.lightning.others
- essentials.mute
- essentials.mute.notify
- essentials.setjail
- essentials.socialspy
- essentials.socialspy.others
- essentials.sudo
- essentials.tempban
- essentials.tempban.offline
- essentials.ban.notify
- essentials.tempban.unlimited
- essentials.togglejail
- essentials.togglejail.offline
- essentials.unbanip
- essentials.ban.notify
- essentials.vanish
- essentials.vanish.interact
- essentials.vanish.pvp
- essentials.weather
- essentials.spawn.others
- essentials.sethome.multiple.unlimited
- essentials.setwarp
- essentials.give
- essentials.god
- essentials.ban
- essentials.break
options:
prefix: '&1[&9Admin&1]&f '
default: false
Owner:
build: true
permissions:
- '*'
options:
prefix: '&6[&4Owner&6]&f '
default: false
schema-version: 1