I have just made new Ranks and linked them to the GroupManager Config, and in-game it says Permissions group 'guest' should be 'Guest',
Here is my AdvancedConfig in AutoRank:

ranks:
guest:
requirements:
time:
value: 8h
results:
rank change: guest;citizen
command: 'say &p just got a promotion; broadcast &p has just been promoted to Citizen!'
message: 'Congratulations, you are now a Citizen.'
citizen:
requirements:
time:
value: 30h
results:
rank change: citizen;trusted
command: 'say &p has just been promoted to Trusted!'
message: 'Congratulations, you are now a Trusted.'

Here is the GroupManager Permissions/Groups:

groups:
Guest:
default: true
permissions:
- essentials.suicide
- essentials.spawn
- essentials.afk
- essentials.motd
- essentials.tpaccept
- essentials.tpdeny
- essentials.tpa
- essentials.tpdeny
- essentials.mail
- essentials.warp
- essentials.warplist
- essentials.balance
- essentials.balancetop
- essentials.pay
- essentials.sell
- essentials.worth
- essentials.sellhand
- essentials.afk
- essentials.help
- essentials.helpop
- essentials.mail
- essentials.me
- essentials.msg
- essentials.rules
- essentials.back
- essentials.sethome
- essentials.deletehome
- essentials.home
- essentials.spawn
- essentials.recipe
- kits.spawn.guest
inheritance:
info:
prefix: '&f[&7Guest&f]&7'
build: false
suffix: ''
Citizen:
default: false
permissions:
- essentials.tpa
- essentials.worth
- essentials.warp
- essentials.warp.list
- essentials.pay
- essentials.balance
- essentials.balancetop
- essentials.ping
- essentials.msg
- essentials.sethome
- essentials.sethome.multiple
- essentials.home
- essentials.me
- essentials.mail
- essentials.mail.send
- essentials.kit
- essentials.exp
- essentials.feed
- essentials.hat
- essentials.kit
- essentials.kits
- essentials.workbench
- essentials.list
- essentials.nick
- essentials.enderchest
- essentials.recipe
- essentials.top
- kits.list
inheritance:
- Guest
info:
prefix: '&f[&eCitizen&f]&e'
build: true
suffix: ''

Could you repost them in pastebin and give the link? This is a bit unreadable.

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