Pex isnt working? Please help!

Heres my log

groups:
default:
default: true
prefix: '&1[&aMember&1]&f'
permissions:
- essentials.tpaccept
- essentials.tpdeny
- essentials.sign.use.warp
- essentials.tpahere
- essentials.tpa
- essentials.back
- essentials.sethome
- essentials.home
- essentials.sign.buy.use
- essentials.signs.buy.use
- essentials.sign.sell.use
- essentials.signs.user.*
- modifyworld.*
- essentials.spawn
- essentials.warp.list
- essentials.warp
- essentials.money
- essentials.balance
- essentials.pay
- essentials.list
- modifyworld.place
- essentials.afk
- essentials.help
- essentials.warp
- essentials.sell.sign
- essentials.buy.sign
Admin:
default: false
prefix: '&7[Admin]'
permissions:
- '*'
Co-Owner:
default: false
prefix: '&0[&aCo-Owner&0]'
permissions:
- '*'
Owner:
default: false
prefix: '&9[&6Owner&9]'
permissions: '*'
Donor:
default: false
prefix: '&7[Donor]'
inheritance:
- Default

Moderator:
prefix: '&1[&3Moderator&1]'
permissions:
- essentials.seen
- essentials.vanish
- /weather
- essentials.clearweather
- essentials.setday
- essentials.money
- essentials.pay
- essentials.balance
- essentials.clearinventory
- essentials.tpa
- essentials.tphere
- /msg
- essentials.msg
- essentials.message
- essentials.reply
- essentials.tp
- essentials.sethome
- essentials.home
- essentials.tell
- essentials.back
- essentials.r
worlds:
night:
permissions:
- /time
donor+:
worlds:
essentials.chat.color:
permissions:
- permission

Helper:
permissions:
- essentials.pay
- essentials.money
- essentials.tpdeny
- essentials.tpaccept
- essentials.chat.color
- essentials.nick
- essentials.sign.use.warp
- essentials.home
- essentials.sethome
- essentials.tpahere
- essentials.tp
- essentials.tpa
- essentials.sign.sell.use
- essentials.sign.buy.use
- essentials.sethome.multiple
prefix: '&3[&aHelper&3]'
users:
TommyP7:
group:
- Co-Owner
permissions:
- '*'
Meter746:
group:
- Owner
permissions:
- '*'
grantlester808:
worlds:
moderator:
permissions:
- group
group:
- moderator
Pockee:
group:
- Helper