missing messages / ChatFrame.lua

[Everglow]

I miss certain system messages including all /roll 's and messages like "player not found", or party members receiving loot from rolls or a lootmaster (including myself) I get messages like channel changes, people coming online/going offline loot I pick up, etc. I've scoured my addons to find the culprit, but no luck. I've also cleared the cache, WDB and WUA. Before I empty WTF, I would like to know if anyone can get anything from this error message. The folder FrameXML and file ChatFrame.lua does not exist anywhere in the Warcraft directory tree, so it must be internal code.

Date: 2009-06-08 14:17:43
ID: 2
Error occured in: Global
Count: 1
Message: ..\FrameXML\ChatFrame.lua line 2368:
bad argument #1 to 'strlen' (string expected, got nil)
Debug:
[C]: ?
[C]: strlen()
..\FrameXML\ChatFrame.lua:2368:
..\FrameXML\ChatFrame.lua:2349
(tail call): ?
(tail call): ?
(tail call): ?
(tail call): ?
..\FrameXML\ChatFrame.lua:2202: ChatFrame_OnEvent()
[string "*:OnEvent"]:1:
[string "*:OnEvent"]:1
AddOns:
Swatter, v5.5.4270 (WombatII)
WowheadLooter, v30100
Corpse, v3.1.0.4
Cursor, v3.0.8.1
ACP, v3.1.0.17
AdvancedTradeSkillWindow, v
AideDeCamp, v1.0
Atlas, v1.14.1
AtlasBattlegrounds, v1.14.1
AtlasDungeonLocs, v1.14.1
AtlasOutdoorRaids, v1.14.1
AtlasTransportation, v1.14.1
AtlasLoot, vv5.05.00
BagnonForever, v1.1.1
BagnonTooltips, v
BetterInbox, v
BetterOutbox, v
BonusScanner, v5.0
BrokerBonusScanner, v1.2
BrokerHitCrit, v2.8.4-release
BrokerWallet, v1.11
Buffet, v3.1.0.28
Cartographer, v2.0
CartographerBattlegrounds, v2.0
CartographerCoordinates, v2.0
CartographerFoglight, v2.0
CartographerGroupColors, v2.0
CartographerGuildPositions, v2.0
CartographerInstanceLoot, v2.0
CartographerInstanceMaps, v2.0
CartographerInstanceNotes, v2.0
CartographerLookNFeel, v2.0
CartographerNotes, v2.0
CartographerPOI, v2.0
CartographerWaypoints, v2.0
CartographerZoneInfo, v2.0
ChatNotes, v1.2.1
CombatCam, v3.1.01
Combuctor, v2.1.1
CombuctorSets, v
CTCore, v3.017 (CTMod 3.0)
DBMBurningCrusade, v
DBMCore, v
DBMSpellTimers, v
DemocraticReadyCheck, v1.1
DetachedMiniButtons, v0.9.47
Dominos, v1.9.4
DominosCast, v
DominosXP, v
DoomCooldownPulse, v
DruidStats, v3.0.7 Beta 1
EMLib, v
FlightMap, v
FriendsFacts, v
FriendShare, v
GatherMate, vv1.18
gBrokerEmote, v1.0:30000
GearScore, v2.1.02
GlyphRecolor, v
GroupCalendar, v4.5
HatTrick, v3.0.1.1
LFGVoyeur, v3.05
LightHeaded, v293
LightHeadedDataE, v293
LookinAtMe, v1.0.2
Ludwig, v1.8.1
MacroBank, v1.4
MobMap, v333
MoreDressUpButtons, v30000-1
MoveAnything, v3.0.2-7
NowCarrying, v
Omen, v3.0.7
OmniCC, v2.5.3
OmniCCPulse, v1.0.0
Overachiever, v0.43
PenisAttachment, v2.3.2.1
PhanxChat, v3.1.1.49-beta
Possessions, v2.0.2o v5
ProfessionsBook, v3.0.3
Quartz, v1.0
QuartzBuff, v1.0
QuartzFocus, v1.0
QuartzGCD, v1.0
QuartzInterrupt, v1.0
QuartzLatency, v1.0
QuartzMirror, v1.0
QuartzPlayer, v1.0
QuartzRange, v1.0
QuartzSwing, v1.0
QuartzTarget, v1.0
QuartzTimer, v1.0
QuartzTradeskill, v1.0
QuestGuru, v1.0.9
QuickRepair, v3.0.03
RatingBuster, v
RCSound, v0.1.012
ReagentID, v3.0.3BC(v2)
Recount, v
RedRange, v
sct, v6.2
sctd, v3.1
SellOMatic, vv1.1.13
SexyMap, v
SickOfClickingDailies, v6
SimpleRaidTargetIcons, v1.08
StealYourCarbon, v3.0.3.16
Talented, v2.3
TalentedSpecTabs, v
tekKompare, v3.0.3.5
teksLoot, v3.0.1.4
ThereIsNoCost, v1.1.0
Titan, v4.2.4.30100 - Revision 267
TitanAmmo, v4.2.4.30100
TitanBag, v4.2.4.30100
TitanClock, v4.2.4.30100
TitanCompanion, v1.02.30000
TitanCoords, v4.2.4.30100
TitanDurability, v1.15
TitanGoldTracker, v4.2.4.30100
TitanLootType, v4.2.4.30100
TitanMicrobuttons, v3.1.1
TitanMount, v3.1.1
TitanPals, v4.0.0.30000
TitanPerformance, v4.2.4.30100
TitanProfessions, v3.1
TitanRegen, v4.2.4.30100
TitanRepair, v4.2.4.30100
TitanRider, v3.0 r1
TitanSpec, v1.4.2.30100
TitanSpeed, v3.0.003
TitanVolume, v4.2.4.30100
TitanXP, v4.2.4.30100
TomTom, v216
Wardrobe, v3.18
Whisp, v20090204
WhoHas, v3.0.2
WhosThat, v1.5
XPerl, v3.0.3c
XPerlArcaneBar, v
XPerlParty, v
XPerlPartyPet, v
XPerlPlayer, v
XPerlPlayerBuffs, v
XPerlPlayerPet, v
XPerlRaidAdmin, v
XPerlRaidFrames, v
XPerlRaidHelper, v
XPerlRaidMonitor, v
XPerlRaidPets, v
XPerlTarget, v
XPerlTargetTarget, v
XPGain, v
(ck=d7c)

[Tristanian]

Most likely you have some addon that is incorrectly hooking the ChatFrame_MessageEventHandler function by calling the original with a bad argument (at least that's what the error implies).

[Dridzt]

AideDeCamp
ChatNotes
EMLib
Whisp
WhosThat

are ones I don't have/haven't tested so I'd start there.