What steps will reproduce the problem?
1. It happened multiple times when I was in Wintergrasp but it might have elsewhere also

What is the expected output? What do you see instead?

What version of the product are you using?
Exact version: 1.8.3
Locale: enGB

Are you using Parrot with embedded libs (if you don't know that means yes)?
Yes, updating with Curse Client

Do you have an error log of what happened?

Message: Interface\AddOns\Parrot\Data\TriggerConditions.lua:637 bad argument #1 to 'format' (string expected, got nil)
Time: Sat Aug 15 13:47:29 2009
Count: 2
Stack: [string "Interface\FrameXML\BasicControls.xml:<Scrip..."]:18: in function <[string "Interface\FrameXML\BasicControls.xml:<Scrip..."]:4>
(tail call): ?
...tographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:474 in function <...tographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:415
(tail call): ?

Locals: namespace = "Blizzard"
event = "COMBAT_LOG_EVENT_UNFILTERED"
events_namespace = <table> {
 CHAT_MSG_LOOT = <table> {
 }
 SPELL_UPDATE_COOLDOWN = <table> {
 }
 PLAYER_ENTERING_WORLD = <table> {
 }
 RAID_ROSTER_UPDATE = <table> {
 }
 UNIT_MAXHEALTH = <table> {
 }
 CVAR_UPDATE = <table> {
 }
 HONOR_CURRENCY_UPDATE = <table> {
 }
 CHAT_MSG_COMBAT_FACTION_CHANGE = <table> {
 }
 UNIT_DISPLAYPOWER = <table> {
 }
 PLAYER_REGEN_DISABLED = <table> {
 }
 UNIT_COMBO_POINTS = <table> {
 }
 PARTY_MEMBERS_UPDATE = <table> {
 }
 UNIT_HEALTH = <table> {
 }
 CHAT_MSG_SKILL = <table> {
 }
 SPELLS_CHANGED = <table> {
 }
 ADDON_LOADED = <table> {
 }
 PLAYER_LEVEL_UP = <table> {
 }
 MINIMAP_UPDATE_ZOOM = <table> {
 }
 PLAYER_REGEN_ENABLED = <table> {
 }
 PLAYER_TARGET_CHANGED = <table> {
 }
 PLAYER_ALIVE = <table> {
 }
 CHAT_MSG_MONEY = <table> {
 }
 MODIFIER_STATE_CHANGED = <table> {
 }
 PLAYER_LEAVING_WORLD = <table> {
 }
 PLAYER_XP_UPDATE = <table> {
 }
 WORLD_MAP_UPDATE = <table> {
 }
 PLAYER_PET_CHANGED = <table> {
 }
 PLAYER_UNGHOST = <table> {
 }
 MINIMAP_ZONE_CHANGED = <table> {
 }
 UNIT_MAXMANA = <table> {
 }
 ZONE_CHANGED_NEW_AREA = <table> {
 }
 UNIT_MANA = <table> {
 }
 COMBAT_LOG_EVENT_UNFILTERED = <table> {
 }
 UNIT_FACTION = <table> {
 }
}
multiEvents_namespace = nil
events_namespace_event = <table> {
 (null) = <table> {
 }
 (null) = <table> {
 }
}
multiEvents_namespace_withEvent = <table> {
}
tmp1 = <table> {
 1 = <table> {
 }
 2 = <table> {
 }
}
tmp2 = <table> {
 1 = <table> {
 }
 2 = <table> {
 }
}
lastUID = nil
(for index) = 1
(for limit) = 2
(for step) = 1
i = 1
object = <table> {
 website = "http://www.wowace.com/";
 license = "GPL v2 or later"
 email = "ckknight AT gmail DOT com, cedwani AT quantentunnel DOT de"
 version = "v1.8.3"
 RemoveAllEventListeners = <function> defined @Interface\AddOns\Cartographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:275
 title = "Parrot"
 HasEventListener = <function> defined @Interface\AddOns\Cartographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:325
 GetSecondaryConditionParamDetails = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:294
 category = "Combat"
 GetPrimaryConditionParamDetails = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:283
 DispatchEvent = <function> defined @Interface\AddOns\Cartographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:508
 RegisterSecondaryTriggerCondition = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:252
 OnDisable = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:37
 notes = "Floating Combat Text of awesomeness. Caw. It'll eat your crackers."
 combatLogEvents = <table> {
 }
 COMBAT_LOG_EVENT_UNFILTERED = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:334
 FirePrimaryTriggerCondition = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:118
 author = "ckknight, profalbert"
 EventHandler = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:65
 DoesSecondaryTriggerConditionPass = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:312
 GetSecondaryConditionChoices = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:278
 OnEnable = <function> defined @Interface\AddOns\Parrot\Code\TriggerConditions.lua:23
 name = "Parrot_TriggerConditions"
 RemoveEventListener = <function> defined @Interface\AddOns\Cartographer\libs\LibRockEvent-1.0\LibRockEvent-1.0.lua:215
 GetPrimaryConditionChoices = <function> d