expected <block end>, but found 'block mapping start>

I'm not amazing with YAML, I'm just learning, so if anyone could tell me why I'm getting this error, I'd appreciate it. (This is my PermissionsEX file.)
All the code is in here

 

Use this:

Code:

groups:
  user:
    default: true
    permissions:
    - factions.kit.fullplayer
    - essentials.signs.use.disposal
    - essentials.signs.use.enchant
    - essentials.signs.use.warp
    - essentials.chat.url
    - essentials.warp
    - essentials.signs.use.repair
    - hsp.home.bedsethome
    - modifyworld.*
    - hsp.command.spawn
    - mcmmo.ability.all
    - mcmmo.commands.defaults
    - mcmmo.commands.mcmmo.all
    - mcmmo.commands.mctop.all
    - mcmmo.commands.party.all
    - mcmmo.commands.party.teleport
    - mcmmo.defaults
    - mcmmo.skills.all
  stone:
    inheritance:
    - user
  iron:
    inheritance:
    - stone
  gold:
    permissions:
    - essentials.nick
    inheritance:
    - iron
  diamond:
    permissions:
    - essentials.nick
    inheritance:
    - gold
  emerald:
    permissions:
    - essentials.nick
    inheritance:
    - diamond
  admins:
    prefix: '&0(&4Admins&0)&7 '
    permissions:
    - permissions.*
    - mcmmo.commands.xprate.all
    inheritance:
    - emerald
users:
  Leadmau5:
    group:
    - admins
    permissions:
    - permissions.*
    - permissions.manage.reload

Your spacing was a bit messed up.