Minecraft Server GroupManager Error

whenever i start up the server it works fine except people in the default group cant use warps when they have the permission and when i try to add people to groups i get a internal error and then on the console i get a crash report can someone fix my groups.yml file so people can warp and i dont get errors?

g# Group inheritance
#
# Any inherited groups prefixed with a g: are global groups
# and are inherited from the GlobalGroups.yml.
#
# Groups without the g: prefix are groups local to this world
# and are defined in the this groups.yml file.
#
# Local group inheritances define your promotion tree when using 'manpromote/mandemote'

groups:
Default:
default: false
permissions: []
inheritance: []
info:
prefix: '&3'
build: true
suffix: '&5'
Builder:
default: true
permissions:
- essentials.home
- essentials.me
- essentials.msg
- essentials.sethome
- essentials.warp
- essentials.warp.*
- essentials.kit
- essentials.kit.[kitname]
- essentials.balance
- essentials.balancetop
- essentials.pay
- essentials.worth
- essentials.afk
- essentials.helpop
- essentials.helpop.receive
- essentials.info
- essentials.list
- essentials.help
- essentials.rules
- essentials.suicide
- essentials.spawn
- essentials.tpa
- essentials.tpaccept
- essentials.tpahere
- essentials.tpdeny
- essenitals.signs.use*
inheritance:
- default
info:
prefix: '&2'
build: true
suffix: ''
Owner:
default: false
permissions:
- '*'
inheritance:
- admin
info:
prefix: '&1[&1Owner&1] &f'
build: true
suffix: '&4'
Moderator:
default: false
permissions:
- essentials.afk
- essentials.balance
- essentials.compass
- essentials.depth
- essentials.getpos
- essentials.help
- essentials.list
- essentials.mail
- essentials.mail.send
- essentials.me
- essentials.motd
- essentials.msg
- essentials.msg.color
- essentials.near
- essentials.pay
- essentials.realname
- essentials.rules
- essentials.seen
- essentials.sell
- essentials.signs.break.disposal
- essentials.signs.color
- essentials.signs.create.disposal
- essentials.signs.use.balance
- essentials.signs.use.buy
- essentials.signs.use.disposal
- essentials.signs.use.heal
- essentials.signs.use.mail
- essentials.signs.use.spawnmob
- essentials.signs.use.time
- essentials.signs.use.warp
- essentials.signs.use.weather
- essentials.spawn
- essentials.suicide
- essentials.warp
- essentials.whois
- essentials.worth
- modifyworld.chat
- essential.help
- essential.rules
- essential.use.signs.warp
- essential.warp
- essentials.help
inheritance:
- g:groupmanager_moderator
- g:bukkit_moderator
- g:essentials_moderator
- g:towny_moderator
- g:vanish_moderator
- Default
- Member
info:
prefix: '&5[&5Moderator&5]&f'
build: true
suffix: ''
Admin:
default: false
permissions:
- disguisecraft.*
inheritance:
- moderator
- g:groupmanager_admin
- g:bukkit_admin
- g:essentials_admin
- g:towny_admin
- g:vanish_admin
- Default
- Member
info:
prefix: '&4[Admin&4]&f'
build: true
suffix: ''