Question Is my permissions.yml incorrect. It will not work

So when I try to do /pex group Owner user add MLGBootyAssassin literally nothing happens. I don't get any of the permission I am supposed to have I don't have a prefix or anything. Is my permission.yml file setup incorrectly or am I just doing something wrong server side

Code:

groups:
  Guest:
    default: true
    prefix: '[Guest] '
    build: false
    permissions:
    - essentials.help
    - essentials.rules
    - essentials.motd
    - modifyworld.chat
  Member:
    default: false
    prefix: '&2[&aMember&2]&7 '
    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.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
  VIP:
    default: false
    prefix: '&6[&eVIP&6]&7 '
    inheritance:
    - Guest
    - Member
    build: true
    permissions:
    - essentials.help
    - essentials.rules
    - essentials.motd
  Mod:
    default: false
    prefix: '&1[&9Mod&1]&f '
    inheritance:
    - VIP
    - Member
    - Guest
    build: true
    permissions:
    - essentials.sethome.multiple.staff
    - essentials.helpop
    - essentials.home.others
    - essentials.nick
    - essentials.warp
    - essentials.warp.list
  Admin:
    default: false
    prefix: '&9[&bAdmin&9]&f '
    inheritance:
    - Mod
    - VIP
    - Member
    - Guest
    build: true
    permissions:
    - essentials.gamemode
    - essentials.give
    - essentials.god
  Owner:
    default: false
    prefix: '&6[&4Owner&6]&f '
    build: true
    permissions:
    - '*'
users:
  MLGBootyAssassin:
    group:
    - Owner
  Atlantic_Gamer:
    group:
    - Member
  StapleHammer:
  group:
  - Member
  iPaolera:
  group:
  - Mod
  Materialismo:
  group:
  - Member
  NemoKiller:
  group:
  - Member
  fredet:
  group:
  - Member
  - '*'

I figured our what was wrong with it. But now I just cant type in chat or build

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I've always seen PEX as being very temperamental. I suggest bPermissions. Easy to convert and use. I have gotten issues like that before.