Ghost: Recon: Continued 

local function OnEvent(this, event, timeStamp, combatEvent, hideCaster, sourceGuid, sourceName, sourceFlags, sourceRaidFlags, destGuid, destName, destFlags, destRaidFlags, spellId, spellName, spellSchool, missType, ...)

    if event == "COMBAT_LOG_EVENT_UNFILTERED" then
		if not GhostRecon.IgnoredAbilities[spellId] then
	    	local where = GhostRecon:WhereAmI()
	    	local inInst = GhostRecon:InInstance()
	    	
	    	
	    	if where ~= nil and where ~= "" and spellId ~= nil then
		    	local link = GetSpellLink(spellId)
		    	if not link then
					link = "Unknown spells for id=" .. spellId
				end
		    	
		    	GhostReconDB.Instances[where] = GhostReconDB.Instances[where] or { }
		
		    	if inInst then
					GhostReconDB.Instances[where].isInstance = inInst
				else
					GhostReconDB.Instances[where].isInstance = nil
				end
				
				if combatEvent == "SPELL_INTERRUPT" then
	        		if GhostReconDB.Settings.Active then
	        			if GhostRecon.abilityBar.mobGuid == destGuid then
							GhostRecon.abilityBar:StopSpell(destGuid, sourceName, missType)
	        			end
					end
				end
				
		        if combatEvent == "SPELL_CAST_START" or combatEvent == "SPELL_CAST_SUCCESS" then
	        		if GhostReconDB.Settings.Active then
	        			if GhostRecon.abilityBar.mobGuid == sourceGuid then
							local _, _, _, _, _, _, castTime = GetSpellInfo(spellId)
							if not castTime then 
								castTime = 0
							end

Date: 2011-07-02 14:46:57
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\GhostRecon\Core.lua line 248:
   attempt to perform arithmetic on local 'castTime' (a nil value)
Debug:
   [C]: ?
   GhostRecon\Core.lua:248:
      GhostRecon\Core.lua:215
AddOns:
  Swatter, v3.2.4 (<%codename%>)
  NPCScan, v4.2.0.1
  NPCScanOverlay, v4.2.0.1
  AckisRecipeList, v2.2.5-25-g717ff7a
  Altoholic, v4.2.001
  AtlasLootLoader, vv6.04.03
  AuctionLite, v1.8.2
  Babylonian, v5.1.DEV.312(/embedded)
  Bagnon, v4.2.3
  BagnonConfig, v
  BagnonForever, v4.2.3
  BagnonTooltips, v
  Bartender4, v4.4.19
  BigWigs, v3.720
  ButtonForge, v0.9.13
  Chinchilla, vv2.3.2
  Configator, v5.1.DEV.312(/embedded)
  DataStore, v4.2.001
  DataStoreAchievements, v4.2.001
  DataStoreAgenda, v4.2.001
  DataStoreAuctions, v4.2.001
  DataStoreCharacters, v4.2.001
  DataStoreContainers, v4.2.001
  DataStoreCrafts, v4.2.001
  DataStoreCurrencies, v4.2.001
  DataStoreInventory, v4.2.001
  DataStoreMails, v4.2.001
  DataStorePets, v4.2.001
  DataStoreQuests, v4.2.001
  DataStoreReputations, v4.2.001
  DataStoreSpells, v4.2.001
  DataStoreStats, v4.2.001
  DataStoreTalents, v4.2.001
  DropTheCheapestThing, vv3.6
  ForteCasting, v
  ForteCooldown, v
  ForteCore, v1.975.5
  ForteDeathKnight, v
  ForteDruid, v
  ForteHealthstone, v
  ForteHunter, v
  ForteMage, v
  FortePaladin, v
  FortePriest, v
  ForteRogue, v
  ForteShaman, v
  ForteSoulstone, v
  ForteSummon, v
  ForteTalent, v
  ForteTimer, v
  ForteVehicle, v
  ForteWarlock, v
  ForteWarrior, v
  Gatherer, v3.2.4
  GhostRecon, v0.10.9
  HealBot, v4.2.0.0
  IceHUD, v1.7.6 (Revision: 855)
  LightHeaded, v337
  LightHeadedDataB, v337
  LightHeadedDataE, v337
  LightHeadedDataQIDNames, v337
  MillHelp, v2.0.6
  MillHelpGlyphs, v2.0.6
  MinimapButtonFrame, v3.1.5
  MinimapButtonFrameSkinPack, v3.0
  MoveAnything, v12.2.0
  Omen, v3.1.3
  OmniCC, v4.2.muffins1
  OmniCCConfig, v
  OPie, v
  Outfitter, v5.2.2
  Postal, v3.4.9
  Prat30, v3.4.23      
  Prat30HighCPUUsageModules, v
  Prat30Libraries, v
  ReagentHelper2, v2.0.16
  Revelation, v4.1.0-1.6.1
  SatrinaBuffFrame, v3.2
  sct, v6.55
  sctd, v6.55
  ShadowedUnitFrames, vv3.3.6
  Skada, v1.2-34
  SkadaAbsorbs, v1.0
  SkadaCC, v1.0
  SkadaDamage, v1.0
  SkadaDamageTaken, v1.0
  SkadaDeaths, v1.0
  SkadaDebuffs, v1.0
  SkadaDispels, v1.0
  SkadaEnemies, v1.0
  SkadaHealing, v1.0
  SkadaPower, v1.0
  SkadaThreat, v1.0
  Skillet, v
  SlideBar, v3.2.4 (<%codename%>)
  SorhaQuestLog, v1.0
  TargetCharms, v1.5.3 (11/22/2010)
  TidyPlates, v6.3.1 Revision: 289
  TidyPlatesGraphite, v
  TidyPlatesGrey, v
  TidyPlatesNeon, v
  TidyPlatesQuatre, v
  TidyPlatesThreatPlates, v5.2
  TidyPlatesHub, v
  TipTac, v10.12.05
  TipTacItemRef, v10.12.06
  TipTacTalents, v10.11.23
  BlizRuntimeLib_enUS v4.2.0.40200 <us>
  (ck=9f2)

				if not link then
					link = "Unknown spells for id=" .. spellId
				end

							if not castTime then 
								castTime = 0
							end