Error shows up when logging in. Here's my swatter log:

Date: 2024-08-02 19:37:26
ID: 1
Error occured in: Global
Count: 1
Message: ...ddOns/Questie/Modules/Tracker/TrackerQuestTimers.lua line 15:
attempt to index global 'QuestTimerFrame' (a nil value)
Debug:
[string "@Interface/AddOns/Questie/Modules/Tracker/TrackerQuestTimers.lua"]:15: in main chunk
Locals:
TrackerQuestTimers =

{
private = {
}
}
QuestieTracker = {
HasQuest = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:461
RemoveTrackedAchievement = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:2007
Enable = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:500
Unhook = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1717
Update = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:559
UntrackQuestId = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1906
QuestItemLooted = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:436
TrackAchieve = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:2063
Toggle = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:530
UntrackAchieveId = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:2056
UpdateWidth = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1615
UpdateAchieveTrackerCache = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:2022
AQW_Insert = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1927
UpdateDurabilityFrame = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:316
ResetVoiceOverFrame = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:362
RemoveQuestWatch = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1882
RemoveQuest = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1860
UpdateVoiceOverFrame = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:384
HookBaseTracker = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1745
ResetDurabilityFrame = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:286
UpdateHeight = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1658
UpdateFormatting = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:1558
Collapse = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:542
Initialize = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:79
Expand = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:551
private = {
}
Disable = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:512
ResetLocation = defined @Interface/AddOns/Questie/Modules/Tracker/QuestieTracker.lua:269
}
LSM30 = {
OverrideMedia = {
}
callbacks = {
}
LOCALE_BIT_zhTW = 8
SetDefault = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:294
GetDefault = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:290
LOCALE_BIT_ruRU = 2
UnregisterAllCallbacks = defined @Interface/AddOns/AtlasLootClassic/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
MediaType = {
}
LOCALE_BIT_western = 128
SetGlobal = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:281
GetGlobal = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:277
List = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:267
HashTable = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:263
MediaTable = {
}
RegisterCallback = defined @Interface/AddOns/AtlasLootClassic/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:80
IsValid = defined @Interface/AddOns/AtlasLootClassic/Libs/LibSharedMedia-
AddOns:
Swatter, v4.4.6991 (SwimmingSeadragon)
AtlasLootClassic, vv3.2.0
AtlasLootClassicData, vv3.2.0
AtlasLootClassicDungeonsAndRaids, vv3.2.0
AucAdvanced, v4.4.6991 (SwimmingSeadragon)
AucFilterBasic, v4.4.6991 (SwimmingSeadragon)
AucStatHistogram, v4.4.6991 (SwimmingSeadragon)
AucStatiLevel, v4.4.6991 (SwimmingSeadragon)
AucStatPurchased, v4.4.6991 (SwimmingSeadragon)
AucStatSimple, v4.4.6991 (SwimmingSeadragon)
AucStatStdDev, v4.4.6991 (SwimmingSeadragon)
AucUtilFixAH, v4.4.6991 (SwimmingSeadragon)
BeanCounter, v4.4.6991 (SwimmingSeadragon)
BetterBags, vv0.1.89
BiSTooltipSoD, vv1.3
DBMCore, v11.0.2
DBMStatusBarTimers, v11.0.2
DBMVPVEM, veeae112
DejaClassicStats, v11503r3
ElvUI, vv13.72
ElvUILibraries, vv13.72
Enchantrix, v4.4.6991 (SwimmingSeadragon)
EnchantrixBarker, v4.4.6991 (SwimmingSeadragon)
FishingBuddy, v0.9.7
GTFO, v5.10
HighLevelAlert, v0.4.36
IceHUD, vv1.15.3
KillTrack, vv2.31.8
Necrosis, v8.0.6
NightmareIncursionHelper, v1.13
NovaWorldBuffs, v2.88
Questie, v10.3.9
SlideBar, v4.4.6991 (SwimmingSeadragon)
Stubby, v4.4.6991 (SwimmingSeadragon)
BlizRuntimeLib v1.15.3.55917(US)
(ck=499)

Duplicate of #6334

Blizzard just randomly removed an UI element Questie relied on. We are already working on a proper fix.

A workaround is here #6334 (comment)