I went to AH and this poped up

Error occured in: Global
Count: 1
Message: ...ns\TradeSkillInfo\Libs\AceEvent-3.0\AceEvent-3.0.lua line 37:
Attempt to unregister unknown event "AUCTION_OWNED_LIST_UPDATE"
Debug:
[string "=(tail call)"]: ?
[string "=[C]"]: UnregisterEvent()
[string "@TradeSkillInfo\Libs\AceEvent-3.0\AceEvent-3.0.lua"]:37: OnUnused()
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:164: UnregisterEvent()
[string "@DataStore_Auctions\DataStore_Auctions.lua"]:233: ?()
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:119:
...eIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:119
[string "=[C]"]: ?
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:29:
...eIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:25
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:64: Fire()
[string "@TradeSkillInfo\Libs\AceEvent-3.0\AceEvent-3.0.lua"]:120:
...ns\TradeSkillInfo\Libs\AceEvent-3.0\AceEvent-3.0.lua:119
[string "=[C]"]: CloseAuctionHouse()
[string "@Blizzard_AuctionHouseUI\Blizzard_AuctionHouseFrame.lua"]:352:
...izzard_AuctionHouseUI\Blizzard_AuctionHouseFrame.lua:343
[string "=[C]"]: Hide()
[string "@..\FrameXML\UIParent.lua"]:2727: SetUIPanel()
[string "@..\FrameXML\UIParent.lua"]:2754: MoveUIPanel()
[string "@..\FrameXML\UIParent.lua"]:2778: HideUIPanel()
[string "@..\FrameXML\UIParent.lua"]:2456:
..\FrameXML\UIParent.lua:2448
[string "=[C]"]: SetAttribute()
[string "@..\FrameXML\UIParent.lua"]:3326:
..\FrameXML\UIParent.lua:3309
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "=[C]"]: HideUIPanel()
[string "@..\SharedXML\SharedUIPanelTemplates.lua"]:131:
..\SharedXML\SharedUIPanelTemplates.lua:125Ah