Received the following Error after accepting the quest "Stead as a Rock?" in Grizzly Hills:

msg: Assertion Failed
toc: 1.0.25
v: 1.0.25
game: 3.1.3
locale: enUS
timestamp: 2009-06-30 16:32:17
mutation: nil
silent: false

Interface\AddOns\QuestHelper\utility.lua:347 in function `Assert'
Interface\AddOns\QuestHelper\tooltip.lua:84 in function `QH_Tooltip_Defer_Add'
Interface\AddOns\QuestHelper\director_quest.lua:381 in function <Interface\AddOns\QuestHelper\director_quest.lua:356
Interface\AddOns\QuestHelper\director_quest.lua:420 in function <Interface\AddOns\QuestHelper\director_quest.lua:406
Interface\AddOns\QuestHelper\director_quest.lua:544 in function `QuestProcessor'
Interface\AddOns\QuestHelper\director_quest.lua:687 in function `func'
Interface\AddOns\QuestHelper\manager_event.lua:43 in function <Interface\AddOns\QuestHelper\manager_event.lua:25
Interface\AddOns\QuestHelper\manager_event.lua:58 in function <Interface\AddOns\QuestHelper\manager_event.lua:52

addons:
  ACP, v3.1.0.17
  AlarBGHelper, v3.5.10 r48
  AtlasLoot, vAtlasLoot Enhanced v5.05.01
  AtlasLootCrafting, vv5.05.01
  AtlasLootWrathoftheLichKing, vv5.05.01
  AtlasLootFu, vv5.05.01
  AucAdvanced, v5.5.4293
  AucFilterBasic, v5.5.4293 (WombatII)
  AucScanData, v1.2
  AucStatClassic, v5.5.4293 (WombatII)
  AucStatHistogram, v5.5.4293 (WombatII)
  AucStatiLevel, v5.5.4293 (WombatII)
  AucStatPurchased, v5.5.4293 (WombatII)
  AucStatSimple, v5.5.4293 (WombatII)
  AucStatStdDev, v5.5.4293 (WombatII)
  AucUtilFixAH, v5.5.4293 (WombatII)
  AutoProfit, v5.3
  BankItems, v30100
  BankStack, vv13
  Bartender4, v4.3.3
  BeanCounter, v5.5.4293 (WombatII)
  Bejeweled, v1.1
  BigBrother
  BonusScanner, v5.0
  BrokerBonusScanner, v1.2
  Cartographer, vr2323
  CartographerBattlegrounds, v2.0
  CartographerFoglight, v2.0
  CartographerGroupColors, v2.0
  CartographerGuildPositions, v2.0
  CartographerInstanceMaps, v2.0
  CartographerInstanceNotes, v2.0
  CartographerLookNFeel, v2.0
  CartographerNotes, v2.0
  CartographerWaypoints, v2.0
  CartographerZoneInfo, v2.0
  Clique, vSVN
  DoTimer, v4.3.5
  EkRaidAttend, v2.82
  EkWaitList, v1.31
  Enchantrix, v5.5.4293
  EnchantrixBarker, v5.5.4293 (WombatII)
  EnsidiaFails, v1.0
  GhostPulse, v2.3
  Gladius, vr28
  GrimReaper, v2.0 72
  GroupCalendar, v4.5
  HALootManager, v1.0.8
  IceHUD, v1.5.9 (Revision: 409)
  identity2, v2.1-30000
  Informant, v5.5.4293
  LightHeaded, v278
  LightHeadedDataE, v278
  MissingFriends, v09.04.13
  MultiMail, v1.4a
  NoteAnnouncer
  Omen, v3.0.7
  oRA2, v2.0.$Revision: 657 $
  Outfitter, v4.7.3
  PowerAuras, v2.6.0
  Prat30, v3.2
  Prat30HighCPUUsageModules
  Prat30Libraries
  ProfessionsBook, v3.0.3
  QuestHelper, v1.0.25
  QuickMark, v2.2.1
  RatingBuster, v1.4.4 (r$Revision: 226 $)
  ReagentHelper2, vv2.0.8
  Recount, v1048
  simpleMinimap, v30000-5
  Stubby, v130
  SwapSpec, v1.1.2
  Swatter, v3.1.13
  Talented, v2.3
  TalentedSpecTabs
  TitanAmmo, v4.2.5.30100
  TitanBag, v4.2.5.30100
  TitanClock, v4.2.5.30100
  TitanCoords, v4.2.5.30100
  TitanGoldTracker, v4.2.5.30100
  TitanLootType, v4.2.5.30100
  TitanPerformance, v4.2.5.30100
  TitanRegen, v4.2.5.30100
  TitanRepair, v4.2.5.30100
  TitanVolume, v4.2.5.30100
  TitanXP, v4.2.5.30100
  Titan, v4.2.5.30100
  TomTom, vSVN
  WhoPinged, v1.2.7
  WIM, v3.1.1
  WinterTime, v1.73
  WowheadLooter, v30100
  XPerl, v3.0.3c
  XPerlArcaneBar
  XPerlPartyPet
  XPerlParty
  XPerlPlayerBuffs
  XPerlPlayerPet
  XPerlPlayer
  XPerlRaidAdmin
  XPerlRaidHelper
  XPerlRaidMonitor
  XPerlRaidPets
  XPerlRaidFrames
  XPerlTargetTarget
  XPerlTarget
  DBMCore
  DBMLDB
  DBMBurningCrusade