Plugin Help PermissionsEx help

Hi i'm working on a prison server and i don't know what is wrong with my permissions i'm really new at this.
groups:
A:
options:
default: true
permissions:
- modifyworld.*
- essentials.kit
- -bukkit.command.plugins
- essentials.kits.starter
- essentials.balance
- essentials.pay
- essentials.afk.auto
- essentials.helop
- essentials.ignore
- essentials.list
- essentials.mail
- essentials.mail.send
- essentials.msg
- essentials.rules
- essentials.suicide
- essentials.warp
- essentials.warps.A
- essentials.warps.pvp
- chestshop.shop.buy
- chestshop.shop.sell
- essentials.signs.use.sell
- essentials.signs.use.buy
- auction.start
- auction.bid
- plotme.use
- plotme.use.add
- plotme.use.remove
- afk.auto
- back.ondeath
- balance
- build
- chat.shout
- chat.question
- geoip.show
- help
- helpop
- ignore
- info
- itemdb
- kit
- kits.starter
- list
- mail
- mail.send
- msg
- pay
- ping
- r
- rules
- signs.use.balance
- signs.use.buy
- signs.use.disposal
- signs.use.enchant
- signs.use.free
- signs.use.gamemode
- signs.use.heal
- signs.use.info
- signs.use.kit
- signs.use.mail
- signs.use.protection
- signs.use.repair
- signs.use.sell
- signs.use.time
- signs.use.trade
- signs.use.warp
- signs.use.weather
- spawn
- suicide
- prisonrankup.rankup
- prisonrankup.ranks
inheritance:
info:
prefix: '&a[&2A&a]'
build: true
suffix: ''
B:
default: false
permissions:
- essentials.warps.B
inheritance:
- A
info:
prefix: '&a[&3B&a]'
build: false
suffix: ''
C:
default: false
permissions:
- essentials.warps.C
inheritance:
- B
info:
prefix: '&a[&4C&a]'
build: false
suffix: ''
D:
default: false
permissions:
- essentials.warps.D
inheritance:
- C
info:
prefix: '&a[&5D&a]'
build: false
suffix: ''
E:
default: false
permissions:
- essentials.warps.E
inheritance:
- D
info:
prefix: '&a[&6E&a]'
build: false
suffix: ''
F:
default: false
permissions:
- essentials.warps.F
inheritance:
- E
info:
prefix: '&a[&7F&a]'
build: false
suffix: ''
G:
default: false
permissions:
- essentials.warps.G
inheritance:
- F
info:
prefix: '&a[&8G&a]'
build: false
suffix: ''
L:
default: false
permissions:
- essentials.warps.L
inheritance:
- G
info:
prefix: '&a[&9L&a]'
build: false
suffix: ''
M:
default: false
permissions:
- essentials.warps.M
inheritance:
- L
info:
prefix: '&a[&aM&a]'
build: false
suffix: ''
N:
default: false
permissions:
- essentials.warps.N
inheritance:
- M
info:
prefix: '&a[&bN&a]'
build: false
suffix: ''
O:
default: false
permissions:
- essentials.warps.O
inheritance:
- N
info:
prefix: '&a[&cO&a]'
build: false
suffix: ''
H:
default: false
permissions:
- essentials.warps.H
inheritance:
- O
info:
prefix: '&a[&dH&a]'
build: false
suffix: ''
I:
default: false
permissions:
- essentials.warps.I
inheritance:
- H
info:
prefix: '&a[&eI&a]'
build: false
suffix: ''
J:
default: false
permissions:
- essentials.warps.J
inheritance:
- I
info:
prefix: '&a[&2&lJ&a]'
build: false
suffix: ''
K:
default: false
permissions:
- essentials.warps.K
inheritance:
- J
info:
prefix: '&a[&3&lK&a]'
build: false
suffix: ''
U:
default: false
permissions:
- essentials.warps.U
inheritance:
- K
info:
prefix: '&a[&4&lU&a]'
build: false
suffix: ''
T:
default: false
permissions:
- essentials.warps.T
inheritance:
- U
info:
prefix: '&a[&5&lT&a]'
build: false
suffix: ''
W:
default: false
permissions:
- essentials.warps.W
inheritance:
- T
info:
prefix: '&a[&6&lW&a]'
build: false
suffix: ''
V:
default: false
permissions:
- essentials.warps.V
inheritance:
- W
info:
prefix: '&a[&7&lV&a]'
build: false
suffix: ''
Q:
default: false
permissions:
- essentials.warps.Q
inheritance:
- V
info:
prefix: '&a[&8&lQ&a]'
build: false
suffix: ''
P:
default: false
permissions:
- essentials.warps.P
inheritance:
- Q
info:
prefix: '&a[&9&lP&a]'
build: false
suffix: ''
S:
default: false
permissions:
- essentials.warps.S
inheritance:
- P
info:
prefix: '&a[&a&lS&a]'
build: false
suffix: ''
R:
default: false
permissions:
- essentials.warps.R
inheritance:
- S
info:
prefix: '&a[&b&lR&a]'
build: false
suffix: ''
Y:
default: false
permissions:
- essentials.warps.Y
inheritance:
- R
info:
prefix: '&a[&c&lY&a]'
build: false
suffix: ''
X:
default: false
permissions:
- essentials.warps.X
inheritance:
- Y
info:
prefix: '&a[&d&lX&a]'
build: false
suffix: ''
Z:
default: false
permissions:
- essentials.warps.Z
inheritance:
- X
info:
prefix: '&a[&e&lZ&a]'
build: false
suffix: ''
Freeman:
default: false
permissions:
- essentials.warps.Freeman
inheritance:
- Z
info:
prefix: '&a[&bFree&a]'
build: false
suffix: ''

 

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PEX does not use a section called info. Prefix, suffix, build: true/false, and default: true/false lines all go under the options section.