[Unsolved]PermsEx help.

I for some reason cant get ranks to have any permissions. This is my Permissions.yml

Code:

groups:
    default:
        default: true
        options:
            rank: '1000'
        permissions:
        - modifyworld.chat
    Member:
        prefix: '&0(&8M&7ember&0)&7 '
        permissions:
        - modifyworld.*
        options:
            rank: '900'
    MLG Pro:
        prefix: '&0(&eMLG Pro&0)&7 '
        permissions:
        - -modifyworld.mobtarget.monster.creeper
        - modifyworld.*
        options:
            rank: '800'
    Moderator:
        prefix: '&0(&1Moderator&0)&7 '
        permissions:
        - -modifyworld.mobtarget.*
        - modifyworld.*
        options:
            rank: '100'
    Admin:
        prefix: '&0(&4Admin&0)&7 '
        permissions:
        - -modifyworld.mobtarget.*
        - '*'
        options:
            rank: '0'
users:
    bopler:
        group:
        - MLG Pro
    robbyandwillie:
        group:
        - Moderator
    Tdog2523:
        group:
        - Admin
    grant_4476:
        group:
        - Admin
    grand:
        group:
        - Member
    Nyx95:
        group:
        - Member
    jordan:
        group:
        - Member
    xJordanz:
        group:
        - Member
    cdogball:
        group:
        - MLG Pro

Please help!

Also every time I try to give permissions to member MLG Pro Moderator Admin and all ranks it just all messes up.D:

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