PLEASE help

so I'm fairly new to running a server and I'm having trouble. None of my players can use any commands. If anyone has a solution to the please help me out.
My plugins list is:
AdminFun
Essentials
PermissionsEx
Updater
WorldEdit
WorldGuard
Contrib

Also here is my Permissions.yml

groups:
Player:
default: true
prefix: '&8&l[&7Player&8&l]&f'
permissions:
- modifyworld.*
- essentials.motd
- essentials.list
- essentials.spawn
- essentials.rules
- essentials.afk
- essentials.afk.auto
- essentials.help
- essentials.helpop
- essentials.getpos
- essentials.ignore
- essentials.mail
- essentials.mail.send
- essentials.msg
- essentials.suicide
- essentials.sethome
- essentials.home
- essentials.delhome
- essentials.tpa
- essentials.tpaccept
- essentials.tpahere
- essentials.tpdeny
- essentials.warp
- essentials.warp.list
- essentials.sign.use.info
- essentials.sign.use.warp
Moderator:
default: false
prefix: '&8&l[&6Mod&8&l]&f'
permissions:
- essentials.ban
- essentials.kick
- essentials.broadcast
- essentials.nick.format
- essentials.mute
- essentials.realname
- essentials.say
- essentials.weather
inheritance:
- Player
Admin:
default: false
prefix: '&8&l[&4Admin&8&l]&f'
permissions:
- essentials.ban.ip
- essentials.me
- worldedit.*
- essentials.gamemode
- essentials.invsee
- essentials.who
inheritance:
- Moderator
Head-Admin:
default: false
prefix: '&8&l[&1&lHead&0-&1&lAdmin&8&l]&f'
permissions:
- '*'
inheritance:
- Admin
Co-Owner:
default: false
prefix: '&8&l[&c&lCo-Owner&8&l]&f'
permissions:
- '*'
inheritance:
- Head-Admin
Owner:
default: false
prefix: '&8&l[&9&lOwner&8&l]&f'
permissions:
- '*'
inheritance:
- Co-Owner
users:
(YourName):rewgo2710
group:
- (Owner)

 

You didn't mention what version of Craftbukkit, Java or PermissionsEx you are using (yes, it is very important on how we proceed)

Also, you need to surround your permissions in CODE tags in order to preserve the spacing / format or we cannot help you (well, I won't bother trying to fix it in order to load it into my server to see what's wrong)

Until you edit your 1st post and correct the CODE section, you can take a look at this tutorial I'm putting together which has an example file with correct settings for the latest version of PEX.

LHammonds