I keep getting this error within the game. I made sure that the group names are the same within the perm file and the advconfig file for autorank.

here is my perm file:
groups:
StrangerDanger:
options:
add-prefix-suffix: true
default: 'true'
build: 'true'
prefix: '&cStrangerDanger&c '
rank: '1000'
rank-ladder: default
weight: '5'
permissions:
- bukkit.command.help
- bukkit.command.me
- modifyworld.*
- minecraft.command.me
- minecraft.command.help
- essentials.me
- essentials.help
- essentials.spawn
- essentials.home
- essentials.sethome
- griefprevention.createclaims
- essentials.tpa
- essentials.tpaccept
- Signshop.DenyLink.Furnace
- essentials.kit
- essentials.kits.*
- essentials.balance
- essentials.afk
- essentials.afk.auto
- essentials.help
- essentials.mail
- essentials.mail.send
- essentials.rules
- essentials.mute
- essentials.recipe
- essentials.nick
- essentials.back
- essentials.back.ondeath
- essentials.keepxp
- essentials.delhome
- essentials.delwarp
- essentials.home
- essentials.home.bed
- essentials.tpa
- essentials.tpdeny
- essentials.tphere
- essentials.warp
- essentials.warp.list
- essentials.signs.use.balance
- essentials.signs.use.buy
- essentials.signs.use.disposal
- essentials.signs.use.enchant
- essentials.signs.use.free
- essentials.signs.use.gamemode
- essentials.signs.use.heal
- essentials.signs.use.info
- essentials.signs.use.kit
- essentials.signs.use.mail
- essentials.signs.use.protection
- essentials.signs.use.repair
- essentials.signs.use.sell
- essentials.signs.use.spawnmob
- essentials.signs.use.time
- essentials.signs.use.trade
- essentials.signs.use.warp
- essentials.signs.use.weather
- randomtp.use.signs
- essentials.pay
WellKnown:
options:
default: 'false'
build: 'true'
prefix: '&9WellKnown&9 '
rank: '900'
rank-ladder: default
weight: '4'
inheritance:
- StrangerDanger
permissions:
- modifyworld.*
- essentials.hat
- essentials.heal
- echopet.pet.type.creeper
- essentials.repair
- essentials.enderchest
- Signshop.DenyUse.iSell
- Signshop.DenyUse.iBuy
- Signshop.Permit
- Signshop.Signs.Buy
- Signshop.Signs.Sell
- essentials.hat
- essentials.heal
- essentials.skull
- essentials.compass
- essentials.signs.break.buy
- essentials.signs.break.sell
CharityGiver:
options:
default: 'false'
build: 'true'
prefix: '&2CharityGiver&2 '
rank: '800'
rank-ladder: default
weight: '3'
permissions:
- modifyworld.*
- magiccarpet.mc
- magiccarpet.ml
- essentials.weather
- essentials.time
inheritance:
- WellKnown
Invader:
options:
default: 'false'
build: 'true'
prefix: '&6Invader&6 '
rank: '700'
rank-ladder: default
weight: '2'
permissions:
- modifyworld.*
- essentials.god
- essentials.repair.all
- essentials.kick*
- essentials.ban*
- essentials.god.pvp
- griefprevention.restorenature
- griefprevention.restorenatureaggressive
- griefprevention.lava
- griefprevention.adminclaims
- griefprevention.claimslistother
- griefprevention.deleteclaims
- griefprevention.createclaims
- griefprevention.visualizenearbyclaims
- griefprevention.eavesdrop
- griefprevention.overrideclaimc
- griefprevention.softmute
- Signshop.SuperAdmin
- essentials.fly
- essentials.fly.others
- essentials.heal.others
- essentials.workbench
- essentials.give
- essentials.exp
- essentials.exp.give
- essentials.exp.give.others
- essentials.exp.others
- essentials.exp.set
- essentials.exp.set.others
- essentials.afk.kickexempt
- essentials.afk.others
- essentials.enderchest.*
- essentials.mute.*
- essentials.setjail
- essentials.socialspy.*
- essentials.spawnmob.*
- essentials.delhome.others
- essentials.home.others
- essentials.sethome
- essentials.sethome.bed
- essentials.sethome.multiple
- essentials.setwarp
- essentials.tp
- essentials.tp.others
- essentials.warp.overwrite.*
- essentials.chat.spy
inheritance:
- CharityGiver
Illuminati:
options:
default: 'false'
build: true
prefix: '&5[Illuminati]&5 '
rank: '600'
rank-ladder: default
weight: '1'
permissions:
- modifyworld.*
- griefprevention.ignoreclaims
- griefprevention.transferclaim
- griefprevention.adjustclaimblocks
- essentials.gamemode
- essentials.gamemode.others
- essentials.god.others
- essentials.eco
- essentials.eco.loan
- essentials.pay
- essentials.pay.multiple
- essentials.sell
- essentials.setworth
- essentials.worth
- essentials.powertool.*
- essentials.setspawn
- essentials.spawn.others
- essentials.warps.*
- essentials.eco
inheritance:
- Invader
schema-version: 1
users:
6d8c2aec-b1ed-4a6b-b5e0-a92f8eb93542:
group:
- Illuminati
options:
name: PandahMonium
707c8362-2405-4444-ad41-fbaead04497e:
options:
name: SnickelFritz420
group:
- Illuminati

and my advconfig file:

Autorank 2 Advanced Config

Please use the SimpleConfig unless you know what you are doing and

need functionality that the SimpleConfig doesn't provide.

ranks:
StrangerDanger:
requirements:
money:
value: 100000
results:
rank change: StrangerDanger;Wellknown
command: 'say &p just got a promotion; broadcast &p has just been promoted to a WellKnown player!; give &p 314 1; give &p 315 1; give &p 316 1; give &p 317 1; give &p 357 1'
message: 'Congratulations, you are now a WellKnown player. Have a cookie!!! And have a nice day.'
Wellknown:
requirements:
time:
value: 5d
results:
rank change: WellKnown;CharityGiver
command: 'say &p has just been promoted to CharityGiver!; give &p 310 1; give &p 311 1; give &p 312 1; give &p 313 1; give &p 392 1; give &p 354 1'
message: 'Congratulations, you are now a CharityGiver. Have a potato...... and a piece of cake.'

Also, is there a way for autorank to work when some one donates through buycraft?

Could you use pastebin.co for your config?

I'm not sure how you want buycraft to work with Autorank. Would you like an 'amount donated' requirement?

http://pastebin.com/W1ysuHM4
http://pastebin.com/vhrZHgMq

And yes, with buycraft. $10 min to rank up.

I'm not sure if I can do the buycraft thing, but I'll look into it.

Your 'WellKnown' group is spelled with a capital K. In the Autorank config you spelled it with a lower 'k'.

Ok, thank you.