Group Manager Please Help:(

# I was having a hard time getting the default group to be able to build. when a default tries to build or break a # block, the block just does right back. Doesn't say you cannot build or anything. So i messed with the files I
# removed the      - g:groupmanager_default, - g:bukkit_default, - g:essentials_default, - g:towny_default . Now
# even for me as the owner I am Opped And Set to Owner it says you #do not have permission for anything same for
# any other rank, using any command. I tried placing them back still doesn't work. I need help with both the
# building for the Default's and the fix for permissions please.
#
# 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: true
    permissions:
    - -bukkit.command.kill
    - essentials.pay
    - essentials.help
    - essentials.sethome
    - essentials.home
    - essentials.spawn
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use.disposal
    - essentials.warps.pvp
    - essentials.warp
    - essentials.warp.list
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpa
    - essentials.msg
    - essentials.rules
    - essentials.mail
    - essentials.mail.send
    - essentials.list
    - essentials.ignore
    - essentials.balance
    - essentials.build
    - modifyworld.chat
    inheritance:
    - g:groupmanager_default
    - g:bukkit_default
    - g:essentials_default
    - g:towny_default
    info:
      prefix: '&e'
      build: true
      suffix: ''
  Vip:
    default: false
    permissions:
    - essentials.itemspawn.item-4
    - essentials.kits.vip
    - essentials.sethome.multiple
    - essentials.signs.color
    - essentials.joinfullserver
    - essentials.warps.vip
    - essentials.workbench
    - essentials.hat
    inheritance:
    - default
    - g:essentials_builder
    - g:towny_builder
    info:
      prefix: '&2'
      build: true
      suffix: ''
  Moderator:
    default: false
    permissions: []
    inheritance:
    - builder
    - g:groupmanager_moderator
    - g:bukkit_moderator
    - g:essentials_moderator
    - g:towny_moderator
    - g:vanish_moderator
    info:
      prefix: '&5'
      build: true
      suffix: ''
  Admin:
    default: false
    permissions: []
    inheritance:
    - moderator
    - g:groupmanager_admin
    - g:bukkit_admin
    - g:essentials_admin
    - g:towny_admin
    - g:vanish_admin
    info:
      prefix: '&c'
      build: true
      suffix: ''
  Owner:
    default: false
    permissions:
    - '*'
    - -vanish.*
    inheritance:
    - admin
    info:
      prefix: '&4'
      build: true
      suffix: ''