When I am trying to post items to the AH, I will sometimes get the following error. Is this something I can do on my end to fix? I don't know what the problem is?

I am using the latest version of Spartan UI and all of my other addons are up to date.

Date: 2020-04-17 17:11:48
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\SpartanUI\components\Tooltips.lua line 260:
attempt to index field '?' (a nil value)
Debug:
SpartanUI\components\Tooltips.lua:260:
SpartanUI\components\Tooltips.lua:235
[C]: ?
[C]: ?
[C]: ?
[C]: SetAuctionSellItem()
Auctionator\Auctionator.lua:1218: Atr_GetSellItemInfo()
Auctionator\Auctionator.lua:3113: Atr_SetDepositText()
Auctionator\Auctionator.lua:3073: Atr_UpdateUI_SellPane()
Auctionator\Auctionator.lua:3010: Atr_UpdateUI()
Auctionator\Auctionator.lua:2848: Atr_Idle()
Auctionator\Auctionator.lua:2797: Atr_OnUpdate()
[string ":OnUpdate"]:1:
[string ":OnUpdate"]:1
Locals:
self = GameTooltip {
0 =
SetHyperlink = defined =[C]:-1
hasMoney = 1
Hide = defined =[C]:-1
comparing = false
SetBorderColor = defined @interface\AddOns\SpartanUI\components\Tooltips.lua:220
TopOverlay = {
}
shownMoneyFrames = 3
default = 1
SetUnitDebuff = defined =[C]:-1
SetItemByID = defined =[C]:-1
SetLootItem = defined =[C]:-1
SetQuestItem = defined =[C]:-1
SetTrainerService = defined =[C]:-1
numMoneyFrames = 5
SetInboxItem = defined =[C]:-1
SetBuybackItem = defined =[C]:-1
shoppingTooltips =

{
}
SetMerchantItem = defined =[C]:-1
SetQuestLogItem = defined =[C]:-1
SetTradeTargetItem = defined =[C]:-1
SetTradePlayerItem = defined =[C]:-1
SetSendMailItem = defined =[C]:-1
updateTooltip = 0.110000
SetInventoryItem = defined =[C]:-1
SetLootRollItem = defined =[C]:-1
SetUnitAura = defined =[C]:-1
SUITip = {
}
SetAuctionSellItem = defined =[C]:-1
SetBagItem = defined =[C]:-1
needsReset = true
__tamedCounts = true
SetUnitBuff = defined =[C]:-1
BottomOverlay = {
}
SetAuctionItem = defined =[C]:-1
}
itemLink = "[Copper Bar]"
quality = 1
style = {
bgFile = "Interface/Tooltips/UI-Tooltip-Background"
}
_ = "Copper Bar"
_ = "[Copper Bar]"
_ = 1
_ = 10
_ = 0
_ = "Trade Goods"
_ = "Trade Goods"
itemStackCount = 20
_ = ""
_ = 133216
itemSellPrice = 10
itemUnderMouse = Atr_CreateAuctionButton {
0 =
Text = Atr_CreateAuctionButtonText {
}
Right = {
}
Middle = {
}
Left = {
}
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = "Count"
(*temporary) = "Atr_CreateAuctionButton"
(*temporary) = nil
(*temporary) = 7
(*temporary) = "GameTooltipMoneyFrame3"
(*temporary) = GameTooltipMoneyFrame3 {
small = 1
staticMoney = 10
info = {
}
vadjust = 0
trialErrorButton = GameTooltipMoneyFrame3TrialErrorButton {
}
0 =
moneyType = "STATIC"
}
(*temporary) = 4
(*temporary) = 117.555519
(*temporary) = "attempt to index field '?' (a nil value)"
SUI = {
SetDefaultModuleLibraries = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:367
DBUpgrades = defined @interface\AddOns\SpartanUI\core\Framework.lua:1795
EnableModule = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:332
modules = {
}
baseName = "SpartanUI"
IterateEmbeds = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:442
SUF_HealPrediction = defined @interface\AddOns\SpartanUI\core\SUF.lua:39
FontRefresh = defined @interface\AddOns\SpartanUI\core\FontHandler.lua:125
BuildNum = "481"
SetDefaultModulePrototype = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:409
defaultModuleState = true
IsEnabled = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:451
PlayerPowerIcons = defined @interface\AddOns\SpartanUI\core\SUF.lua:158
DisableModule = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:350
RegisterMessage = defined @interface\AddOns\AtlasLootClassic\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:90
UnregisterMessage = defined @interface\AddOns\AtlasLootClassic\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:153
GetFontFace = defined @interface\AddOns\SpartanUI\core\FontHandler.lua:63
BT4ProfileAttach = defined @interface\AddOns\SpartanUI\core\Framework.lua:1891
SetEnabledState = defined @interface\AddOns\Bagnon\external\Wildpants\libs\AceAddon-3.0\AceAddon-3.0.lua:424
enabledState = t
AddOns:
Swatter, v7.3.1 (<%codename%>)
AdvancedInterfaceOptions, v1.3.4
Align, v
AtlasLootClassic, vv1.5.0
AtlasLootClassicData, vv1.5.0
AtlasLootClassicDungeonsAndRaids, vv1.5.0
Auctionator, v8.1.0
BagBrother, v
Bagnon, v8.2.5
Bartender4, v4.9.0
BetterVendorPrice, vv1.13.04
BiSTracker, v1.4
CharacterStatsClassic, v3.4.1
ClassicQuestLog, v1.4.5-Classic
ClassicAuraDurations, v1.13.55
ClassicCastbars, vv1.3.3
ClassicCastbarsOptions, v
Cleanup, v1.0.0
DBMCore, v1.13.42
DBMDefaultSkin, v
DBMStatusBarTimers, v
Dismounter, v1.2.1
GatherMate2, v1.45.5
GigaAutoResourcesTracker, v1.1.0
ItemTooltipProfessionIcons, v1.1.6
LeatrixMaps, v1.13.58
LeatrixPlus, v1.13.58
Mapster, v1.8.5
NugRunning, v1.13.38
Pawn, v2.3.24
Quartz, v3.5-classic-5
QuestFrameFixer, v1.1.1
QuestieDevmaster, v4.0.9 BETA
Recount, vv8.1.5b
SilverRareElites, v1.0.0
SortBags, v1.0.0
SpartanUI, v5.2.3
SpartanUIArtwork, v5.2.3
SpartanUIFilmEffects, v5.2.3
TidyPlatesThreatPlates, v1.3.1
TomTom, vv11304-1.1.2
totalRP3, v1.6.10
totalRP3Data, v
TownsfolkTracker, v1.0.7
WhatsTraining, v1.8.7
ZPerl, v5.9.3
ZPerlArcaneBar, v
ZPerlParty, v
ZPerlPartyPet, v
ZPerlPlayer, v
ZPerlPlayerBuffs, v
ZPerlPlayerPet, v
ZPerlRaidAdmin, v
ZPerlRaidFrames, v
ZPerlRaidHelper, v
ZPerlRaidPets, v
ZPerlTarget, v
ZPerlTargetTarget, v
BlizRuntimeLib_enUS v1.13.4.11304
(ck=59a)