I have not really added/changed much since before patch 3.0.2, the box to enable lua errors is checked.

Here is a list of my addons currently, any idea which one might be blocking these messages?

!BugGrabber
!StopTheSpam
!Swatter
+Wowhead_Looter
Ace2
AceProfit
AceProfitFu
AdvancedTradeSkillWindow
AltClickToAddItem
AtlasLoot
AtlasLoot_BCInstances
AtlasLoot_BurningCrusade
AtlasLoot_Crafting
AtlasLoot_OldInstances
AtlasLoot_OriginalWoW
AtlasLoot_RepFactions
AtlasLoot_SetsandPvP
AtlasLoot_WorldEvents
AtlasLoot_WorldLoot
AtlasLoot_WrathoftheLichKing
AtlasLootFu
Auc-Advanced
AutoBar
AutoProfitX
Babble-2.2
Babble-Class-2.2
Babble-Ore-2.2
BankItems
BankItemsFu
Bartender4
BeanCounter
Capping
Cartographer
Cartographer_Battlegrounds
Cartographer_Cleanup
Cartographer_Coordinates
Cartographer_Fishing
Cartographer_Foglight
Cartographer_GroupColors
Cartographer_GuildPositions
Cartographer_Herbalism
Cartographer_InstanceLoot
Cartographer_InstanceMaps
Cartographer_InstanceNotes
Cartographer_LookNFeel
Cartographer_Mailboxes
Cartographer_Mining
Cartographer_Notes
Cartographer_Noteshare
Cartographer_POI
Cartographer_Professions
Cartographer_Trainers
Cartographer_Treasure
Cartographer_Vendors
Cartographer_Waypoints
Cartographer_ZoneInfo
CensusPlus
Chatter
CooldownTimers3
CurseProfiler
Deadly Boss Mods
Deformat
DewdropLib
DoubleWide
ElkBuffBars
Enchantrix
Enchantrix-Barker
EnhTooltip
EQCompare
ESN_Mount
FlightMap
FuBar
FuBar_AuditorFu
FuBar_BagFu
FuBar_BattlegroundFu
FuBar_ClockFu
FuBar_CombatInfoFu
FuBar_DurabilityFu
FuBar_ExperienceFu
FuBar_GuildFu
FuBar_HonorFu
FuBar_LocationFu
FuBar_MailFu
FuBar_PerformanceFu
FuBar_ProfessionsFu
FuBar_QuestsFu
FuBar_RecountFu
FuBar_ToFu
FuBar_TopScoreFu
FuBar_VolumeFu
FuBarPlugin-2.0
Gatherer
Gatherer_HUD
GFW_AdSpace
GloryLib
GratuityLib
Grid
Grid_QuickHealth
GridAlert
GridAutoFrameSize
ImprovedCamera
Informant
KHunterTimers
LightHeaded
MobInfo2
Nudist
Ogri'Lazy
Omen
OmniCC
OmniCC_Options
Parrot
PitBull
PitBull_Aura
PitBull_Banzai
PitBull_BarFader
PitBull_CastBar
PitBull_CombatFader
PitBull_CombatIcon
PitBull_CombatText
PitBull_ComboPoints
PitBull_DruidManaBar
PitBull_ExperienceBar
PitBull_HappinessIcon
PitBull_HealthBar
PitBull_HideBlizzard
PitBull_Highlight
PitBull_LeaderIcon
PitBull_MasterLooterIcon
PitBull_Portrait
PitBull_PowerBar
PitBull_PvPIcon
PitBull_QuickHealth
PitBull_RaidTargetIcon
PitBull_RangeCheck
PitBull_ReadyCheckIcon
PitBull_ReputationBar
PitBull_RestIcon
PitBull_Spark
PitBull_ThreatBar
PitBull_TotemTimers
PitBull_VisualHeal
PitBull_VoiceIcon
Postal
PreformAVEnabler
Proximo
QuestHelper
Recount
simpleMinimap
SlideBar
Stubby
SW_Stats
SW_Stats_Profiles
SW_UniLog
Talismonger-3.0
twoboxtoolkit

Thanks.

Check your options for Parrot it may well be in there .

You don't need both !Swatter and !BugGrabber. Pick one or the other. Also, if you have the Cartographer set, then Gatherer is overkill. CensusPlus is pointless unless you have a membership on Thottbot.com and are updating their database. I know some people like having both the Atlas mods and Cartographer installed, but again, Cart does everything Atlas does and more. The only reason to keep both is because of some loot options in Atlas, like what trash mobs drop in raid instances, which Cart doesn't show.

Oh, and get rid of SW Stats. It is out of date, and you have Recount which is better.

Doesn't !swatter come with Auctioneer or did I pick it up somewhere?

CensusPlus is for WarcraftRealms and yes I am scanning my server for them.

Good call on the SW stats, I missed that in my last cleanup.  Probably a good call on Gatherer too.  I am only using AtlasLoot, not the map mod.  Cartographer is my map mod.

No setting I can see in Parrot that might cause the issue.  Removed the stuff myrroddin brought up, but still nothing.  I really don't want to unistall everything.

Process of elimination through my addons shows this is actually a Fubar issue.  There is an open bug on the Jira site for Fubar interferring with the xml errors Blizzard produces.

Yes, !Swatter comes with Auctioneer. If you have a preference, pick one or the other, however. I don't know for sure, but it is possible they could conflict. I haven't heard of such, but you never know. Interesting about FuBar, though.