Swatter Problem
 

Swatter is popping up everytime I try to start a Pet Battle in World of Warcraft. It says because of an addon or something but I have no idea what the cause of it is. Here is the full report:

Date: 2014-07-13 22:49:22
ID: 1
Error occured in: Global
Count: 1
Message: ..\FrameXML\FrameLocks.lua line 60:
table index is nil
Debug:
..\FrameXML\FrameLocks.lua:60:
..\FrameXML\FrameLocks.lua:50
..\FrameXML\FrameLocks.lua:69:
..\FrameXML\FrameLocks.lua:68
..\FrameXML\FrameLocks.lua:111:
..\FrameXML\FrameLocks.lua:106
..\FrameXML\FrameLocks.lua:149: AddFrameLock()
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:146: PetBattleFrame_Display()
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:95:
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:92
Locals:
frame = <unnamed> {
0 = <userdata>
}
frameName = nil
(*temporary) = <table> {
MultiBarRight = "shown"
ChatFrame4 = "hidden"
PartyMemberFrame2 = "hidden"
ChatFrame3 = "hidden"
CompactRaidFrameManager = "hidden"
ChatFrame2Tab = "shown"
ChatFrame9Tab = "hidden"
TemporaryEnchantFrame = "shown"
ChatFrame6Tab = "hidden"
PartyMemberFrame1 = "hidden"
ConsolidatedBuffs = "hidden"
TargetFrame = "shown"
WatchFrame = "shown"
DurabilityFrame = "hidden"
ChatFrame5 = "hidden"
ChatFrame7Tab = "hidden"
PartyMemberFrame3 = "hidden"
MainMenuBar = "shown"
MinimapCluster = "shown"
ChatFrame4Tab = "hidden"
ChatFrame10Tab = "hidden"
ChatFrame7 = "hidden"
ChatFrame6 = "hidden"
ChatFrame10 = "hidden"
ChatFrame3Tab = "hidden"
ChatFrame5Tab = "hidden"
ChatFrame8 = "hidden"
ChatFrame8Tab = "hidden"
ChatFrame9 = "hidden"
ChatFrame2 = "hidden"
}
(*temporary) = "shown"
(*temporary) = <unnamed> {
0 = <userdata>
}
(*temporary) = "table index is nil"
BASE_STATES = <table> {
MultiBarRight = "shown"
ChatFrame4 = "hidden"
PartyMemberFrame2 = "hidden"
ChatFrame3 = "hidden"
CompactRaidFrameManager = "hidden"
ChatFrame2Tab = "shown"
ChatFrame9Tab = "hidden"
TemporaryEnchantFrame = "shown"
ChatFrame6Tab = "hidden"
PartyMemberFrame1 = "hidden"
ConsolidatedBuffs = "hidden"
TargetFrame = "shown"
WatchFrame = "shown"
DurabilityFrame = "hidden"
ChatFrame5 = "hidden"
ChatFrame7Tab = "hidden"
PartyMemberFrame3 = "hidden"
MainMenuBar = "shown"
MinimapCluster = "shown"
ChatFrame4Tab = "hidden"
ChatFrame10Tab = "hidden"
ChatFrame7 = "hidden"
ChatFrame6 = "hidden"
ChatFrame10 = "hidden"
ChatFrame3Tab = "hidden"
ChatFrame5Tab = "hidden"
ChatFrame8 = "hidden"
ChatFrame8Tab = "hidden"
ChatFrame9 = "hidden"
ChatFrame2 = "hidden"
}

AddOns:
Swatter, v5.20.5464 (RidiculousRockrat)
NPCScan, v5.4.8.3
NPCScanAutoAdd, v2.3
NPCScanOverlay, v5.4.8.1
AskMrRobot, v1.2.16.0
AucAdvanced, v5.20.5464 (RidiculousRockrat)
AucFilterBasic, v5.20.5464 (RidiculousRockrat)
AucFilterOutlier, v5.20.5464.5459(5.20/embedded)
AucMatchUndercut, v5.20.5464.5364(5.20/embedded)
AucStatHistogram, v5.20.5464 (RidiculousRockrat)
AucStatiLevel, v5.20.5464 (RidiculousRockrat)
AucStatPurchased, v5.20.5464 (RidiculousRockrat)
AucStatSales, v5.20.5464.5376(5.20/embedded)
AucStatSimple, v5.20.5464 (RidiculousRockrat)
AucStatStdDev, v5.20.5464 (RidiculousRockrat)
AucStatWOWEcon, v5.20.5464.5323(5.20/embedded)
AucUtilAHWindowControl, v5.20.5464.5347(5.20/embedded)
AucUtilAppraiser, v5.20.5464.5462(5.20/embedded)
AucUtilAskPrice, v5.20.5464.5447(5.20/embedded)
AucUtilAutoMagic, v5.20.5464.5443(5.20/embedded)
AucUtilCompactUI, v5.20.5464.5444(5.20/embedded)
AucUtilEasyBuyout, v5.20.5464.5458(5.20/embedded)
AucUtilFixAH, v5.20.5464 (RidiculousRockrat)
AucUtilItemSuggest, v5.20.5464.5417(5.20/embedded)
AucUtilPriceLevel, v5.20.5464.5458(5.20/embedded)
AucUtilScanButton, v5.20.5464.5403(5.20/embedded)
AucUtilScanFinish, v5.20.5464.5347(5.20/embedded)
AucUtilScanProgress, v5.20.5464.4979(5.20/embedded)
AucUtilScanStart, v5.20.5464.5347(5.20/embedded)
AucUtilSearchUI, v5.20.5464.5452(5.20/embedded)
AucUtilSimpleAuction, v5.20.5464.5452(5.20/embedded)
AucUtilVendMarkup, v5.20.5464.4828(5.20/embedded)
Babylonian, v5.1.DEV.332(/embedded)
BadPet, v
BeanCounter, v5.20.5464 (RidiculousRockrat)
BloodShieldTracker, v0.29
ButtonForge, v0.9.32
Configator, v5.1.DEV.359(/embedded)
DBMCore, v
DBMDefaultSkin, v
DBMSpellTimers, v
DBMStatusBarTimers, v
DebugLib, v5.1.DEV.337(/embedded)
Enchantrix, v5.20.5464 (RidiculousRockrat)
EnchantrixBarker, v5.20.5464 (RidiculousRockrat)
Gatherer, v4.4.1
Informant, v5.20.5464 (RidiculousRockrat)
LibExtraTip, v5.12.DEV.363(/embedded)
Postal, v3.5.1
Recount, v
RuneItAll, v3.2.1
SellJunk, v3.0.10
SlideBar, v5.20.5464 (RidiculousRockrat)
Stubby, v5.20.5464 (RidiculousRockrat)
TipHelper, v5.12.DEV.351(/embedded)
BlizRuntimeLib_enUS v5.4.8.50400 <us>
(ck=8ba)

Any help would be tremendously appreciated.

Disable (or update) the addon RuneItAll and see if this error still occurs.

If it isn't RuneItAll, then I'd say your first step should be to disable any addons you use that are related to pet battles. Then, if you still get the error, then move on to a basic binary search pattern. Disable half your addons. If you still get the error, disable the enabled ones, and enable the previously disabled ones. Once you find the half that causes the error, disable half of those. Keep halving until you narrow it down to a single addon that causes the problem. Try resetting its settings, and if that doesn't help, report the problem to its author so they can fix it.