I get this error message when trying to open my guild bank. It slows my computer and then crashes World of Warcraft.

Date: 2017-04-10 05:31:42
ID: 2
Error occured in: Global
Count: 1
Message: ...ace\AddOns\Bagnon_GuildBank\components\itemFrame.lua line 12:
Usage: RegisterMessage("eventname", "methodname"): 'methodname' - method 'OnShow' not found on self.
Debug:
[C]: ?
[C]: ?
...Tom\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:140: RegisterMessage()
...ace\AddOns\Bagnon_GuildBank\components\itemFrame.lua:12: RegisterEvents()
...s\Bagnon\external\Wildpants\components\itemFrame.lua:30: Update()
...s\Bagnon\external\Wildpants\components\itemFrame.lua:22: New()
Bagnon\components\frame.lua:323: CreateItemFrame()
Bagnon\components\frame.lua:317: PlaceItemFrame()
Bagnon\components\frame.lua:83: Layout()
Bagnon\components\frame.lua:58: Update()
Bagnon\components\frame.lua:49: RegisterMessages()
...s\Bagnon\external\Wildpants\components\frameBase.lua:18:
...s\Bagnon\external\Wildpants\components\frameBase.lua:16
[C]: Show()
..\FrameXML\UIParent.lua:2907: ShowUIPanel()
...ace\AddOns\Bagnon\external\Wildpants\core\frames.lua:54: ShowFrame()
Bagnon_GuildBank\main.lua:14: OnOpen()
Bagnon\main.lua:26: GuildBankFrame_LoadUI()
..\FrameXML\UIParent.lua:1585:
..\FrameXML\UIParent.lua:953
Locals:

AddOns:
Swatter, v7.4.5714 (TasmanianThylacine)
WowheadLooter, v70203
NPCScanOverlay, v7.1.0.1
AckisRecipeList, v7.2.0.2
AckisRecipeListQuickScan, v7.1.0.1
ACP, v3.4.30
Altoholic, vr178
Atlas, v1.40.04
AtlasArena, v1.06.05
AtlasBattlegrounds, v1.39.00
AtlasBurningCrusade, v1.39.00
AtlasCataclysm, v1.39.00
AtlasClassicWoW, v1.39.00
AtlasClassOrderHalls, v1.39.02
AtlasDungeonLocs, v1.39.00
AtlasLegion, v1.40.03
AtlasMistsofPandaria, v1.39.00
AtlasOutdoorRaids, v1.39.01
AtlasScenarios, v1.39.00
AtlasTransportation, v1.40.00
AtlasWarlordsofDraenor, v1.39.00
AtlasWorldEvents, v3.19
AtlasWrathoftheLichKing, v1.39.00
AtlasLoot, vv8.03.00
AtlasLootBurningCrusade, vv8.03.00
AtlasLootCataclysm, vv8.03.00
AtlasLootClassic, vv8.03.00
AtlasLootLegion, vv8.03.00
AtlasLootMistsofPandaria, vv8.03.00
AtlasLootWarlordsofDraenor, vv8.03.00
AtlasLootWrathoftheLichKing, vv8.03.00
AucAdvanced, v7.4.5714 (TasmanianThylacine)
AucFilterBasic, v7.4.5714 (TasmanianThylacine)
AucFilterOutlier, v7.4.5714.5459(7.4/embedded)
AucMatchUndercut, v7.4.5714.5585(7.4/embedded)
AucStatHistogram, v7.4.5714 (TasmanianThylacine)
AucStatiLevel, v7.4.5714 (TasmanianThylacine)
AucStatPurchased, v7.4.5714 (TasmanianThylacine)
AucStatSales, v7.4.5714.5598(7.4/embedded)
AucStatSimple, v7.4.5714 (TasmanianThylacine)
AucStatStdDev, v7.4.5714 (TasmanianThylacine)
AucStatWOWEcon, v7.4.5714.5613(7.4/embedded)
AucUtilAHWindowControl, v7.4.5714.5575(7.4/embedded)
AucUtilAppraiser, v7.4.5714.5704(7.4/embedded)
AucUtilAskPrice, v7.4.5714.5599(7.4/embedded)
AucUtilAutoMagic, v7.4.5714.5686(7.4/embedded)
AucUtilCompactUI, v7.4.5714.5694(7.4/embedded)
AucUtilEasyBuyout, v7.4.5714.5576(7.4/embedded)
AucUtilFixAH, v7.4.5714 (TasmanianThylacine)
AucUtilItemSuggest, v7.4.5714.5651(7.4/embedded)
AucUtilPriceLevel, v7.4.5714.5633(7.4/embedded)
AucUtilScanButton, v7.4.5714.5631(7.4/embedded)
AucUtilScanFinish, v7.4.5714.5588(7.4/embedded)
AucUtilScanProgress, v7.4.5714.4979(7.4/embedded)
AucUtilScanStart, v7.4.5714.5347(7.4/embedded)
AucUtilSearchUI, v7.4.5714.5710(7.4/embedded)
AucUtilSimpleAuction, v7.4.5714.5705(7.4/embedded)
AucUtilVendMarkup, v7.4.5714.4828(7.4/embedded)
AutoRepair, v
Babylonian, v5.1.DEV.332(/embedded)
BagBrother, v
Bagnon, v7.2.0
BagnonGuildBank, v7.2.0
BattlePetBreedID, vr143
BeanCounter, v7.4.5714 (TasmanianThylacine)
BuyEmAll, v3.3.5
CanIMogIt, v7.2.0.01
ClassicQuestLog, v1.2.10
Configator, v5.1.DEV.406(/embedded)
CrossRealmAssist, v0.81 beta
DailyGlobalCheck, v
DailyGlobalCheckInstanceLockouts, v
DailyGlobalCheckLegionWorldQuests, v
DailyGlobalCheckPetTamers, v
DailyGlobalCheckProfessions, v
DailyGlobalCheckWorldBosses, v
DailyTamerCheck, v
DataStore, vr62
DataStoreAchievements, vr45
DataStoreAgenda, vr25
DataStoreAuctions, vr47
DataStoreCharacters, vr38
DataStoreContainers, vr55
DataStoreCrafts, vr76
DataStoreCurrencies, vr34
DataStoreGarrisons, vr20
DataStoreInventory, vr48
DataStoreMails, vr48
DataStorePets, vr41
DataStoreQuests, vr40
DataStoreReputations, vr39
DataStoreSpells, vr29
DataStoreStats, vr28
DataStoreTalents, vr58
DBMCore, v@project-version@
DBMDefaultSkin, v
DBMLDB, v
DBMStatusBarTimers, v
DebugLib, v5.1.DEV.337(/embedded)
Enchantrix, v7.4.5714 (TasmanianThylacine)
EnchantrixBarker, v7.4.5714 (TasmanianThylacine)
FishingBuddy, v1.7.13
GarrisonCommanderBroker, v2.18.2 1.1.0
GFWDiggerAid, v7.0
GFWFactionFriend, v7.2
GFWHoverTips, v7.0
GFWXPVisualizer, v7.0.1
GFWZippyLighter, v7.0
HandyNotes, vv1.4.13
HandyNotesDraenorTreasures, v1.20a
HandyNotesFieldPhotographer, v7.1.0.0
HandyNotesHallowsEnd, vv1.2.5
HandyNotesLegionRaresTreasures, v1.01b
HandyNotesLorewalkers, v1
HandyNotesTimelessIsleChests, v1.17
HandyNotesTimelessTreasures, v1.0.7
HandyNotesTreasureHunter, v1
HealBot, v7.2.0.0
HealBotTips, v7.2.0.0
Informant, v7.4.5714 (TasmanianThylacine)
LibExtraTip, v5.12.DEV.423(/embedded)
LongMacros, vv1.0.12
MasterPlanA, vA
mOnArsWardrobeHelper, v1.17
NPCScan, v7.1.0.5
Outfitter, v5.18.7
PetBattleTeams, v3.3.7
PetJournalEnhanced, v2.9.26
PetTracker, v7.1.4
PetTrackerBreeds, v7.1.4
PetTrackerConfig, v7.1.4
PetTrackerSwitcher, v7.1.4
PetTrackerUpgrades, v7.1.4
Rarity, v1.0
RarityOptions, v
Rematch, v4.6.5
SellOMatic2, va071
SellOMatic2Destroy, va071
SellOMatic2Item, va071
SellOMatic2List, va071
ServerHop, v7.2.1
SlideBar, v7.4.5714 (TasmanianThylacine)
Stubby, v7.4.5714 (TasmanianThylacine)
TipHelper, v5.12.DEV.405(/embedded)
Titan, v5.10.8.70200
TitanBag, v5.10.8.70200
TitanClock, v5.10.8.70200
TitanCurrency, v7.1
TitanGold, v5.10.8.70200
TitanLocation, v5.10.8.70200
TitanLootType, v5.10.8.70200
TitanPerformance, v5.10.8.70200
TitanRepair, v5.10.8.70200
TitanVolume, v5.10.8.70200
TitanXP, v5.10.8.70200
TomTom, vv70200-1.0.0
TradeSkillMaster, vv3.6.28
TradeSkillMasterDestroying, vv3.1.5
TradeSkillMasterMailing, vv3.0.13
WorldQuestGroupFinder, v0.22.1
WorldQuestsList, v31
BlizRuntimeLib_enUS v7.2.0.70200
(ck=1443)

GuildBank still not ready for 7.2