PermissionsEX Help

Hello, I am trying to setup my permissions, but I have no idea what I'm doing lol. I thought I had set it up ok, but then I got errors when loading the console.

Anyway, here's what I'm trying to do:
Plugins:
PermissionsEX
Factions
CommandsEX
WorldGaurd

So my server is (going to be) a 2 faction/group ultimate pvp server. No mobs, just 2 teams at war. I have a group (noobs) set to default for when you spawn in. I need the permissions setup so that once you join a faction, you can't leave or join the other. I'm using faction for the territory and no team damage part of it.

Plugins (That apply):
PermissionsEX
Factions
CommandsEX
WorldGaurd

Permissions(simple yet I have no idea what I'm doing/errors)
groups:

noobs:

default: true

prefix: '&4Just spawned in%f'
permissions:

- permissions.build: false
- factions.join
ravens:
prefix: '&b[&aR&ba&av&be&an&bs&a]&f'
permissions:

- permissions.build: true
- factions.*: false
aardvarks:
prefix: '&8[&4A&8a&4r&8d&4v&8a&4r&8k&4s&8]&f'
permissions:

- permissions.build: true
- factions.*: false
ops:
prefix: '&e[OP]%f'
permissions:
- permissions.build: true
- factions.*: true

CommandsEX New commands:
/join ravens/modifiers =={
/sudoscript/ =={
pex group ravens user add $p
}
f join ravens
f home
}

/join aardvarks/modifiers =={
/sudoscript/ =={
pex group aardvarks user add $p
}
f join aardvarks
f home
}