I haven't played WoW in a decade so this may be improper setup on my end. I am on MacOS 10.14.5 and I'm getting 33 pages of lua errors

Message: ...rface\AddOns\!Questie\Libs\AceLibrary\AceLibrary.lua:301: 'setn' is obsolete Time: Sun Aug 11 06:55:59 2019 Count: 1 Stack: ...rface\AddOns\!Questie\Libs\AceLibrary\AceLibrary.lua:301: 'setn' is obsolete [C]: ? ...rface\AddOns\!Questie\Libs\AceLibrary\AceLibrary.lua:301: in function <...rface\AddOns\!Questie\Libs\AceLibrary\AceLibrary.lua:298> ...rface\AddOns\!Questie\Libs\AceLibrary\AceLibrary.lua:550: in function Register'
...rface\AddOns!Questie\Libs\AceLibrary\AceLibrary.lua:751: in main chunk

Locals: (*temporary) =

Message: ...terface\AddOns\!Questie\Libs\AceOO-2.0\AceOO-2.0.lua:17: AceOO-2.0 requires AceLibrary. Time: Sun Aug 11 06:55:59 2019 Count: 1 Stack: ...terface\AddOns\!Questie\Libs\AceOO-2.0\AceOO-2.0.lua:17: AceOO-2.0 requires AceLibrary. [C]: in function error'
...terface\AddOns!Questie\Libs\AceOO-2.0\AceOO-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceOO-2.0 requires AceLibrary."
`

Message: ...e\AddOns\!Questie\Libs\AceEvent-2.0\AceEvent-2.0.lua:17: AceEvent-2.0 requires AceLibrary Time: Sun Aug 11 06:55:59 2019 Count: 1 Stack: ...e\AddOns\!Questie\Libs\AceEvent-2.0\AceEvent-2.0.lua:17: AceEvent-2.0 requires AceLibrary [C]: in function error'
...e\AddOns!Questie\Libs\AceEvent-2.0\AceEvent-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceEvent-2.0 requires AceLibrary"
`

Message: ...e\AddOns\!Questie\Libs\AceAddon-2.0\AceAddon-2.0.lua:17: AceAddon-2.0 requires AceLibrary. Time: Sun Aug 11 06:55:59 2019 Count: 1 Stack: ...e\AddOns\!Questie\Libs\AceAddon-2.0\AceAddon-2.0.lua:17: AceAddon-2.0 requires AceLibrary. [C]: in function error'
...e\AddOns!Questie\Libs\AceAddon-2.0\AceAddon-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceAddon-2.0 requires AceLibrary."
`

Message: ...terface\AddOns\!Questie\Libs\AceDB-2.0\AceDB-2.0.lua:17: AceDB-2.0 requires AceLibrary Time: Sun Aug 11 06:55:59 2019 Count: 1 Stack: ...terface\AddOns\!Questie\Libs\AceDB-2.0\AceDB-2.0.lua:17: AceDB-2.0 requires AceLibrary [C]: in function error'
...terface\AddOns!Questie\Libs\AceDB-2.0\AceDB-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceDB-2.0 requires AceLibrary"
`

Message: ...ace\AddOns\!Questie\Libs\AceHook-2.1\AceHook-2.1.lua:17: AceHook-2.1 requires AceLibrary. Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...ace\AddOns\!Questie\Libs\AceHook-2.1\AceHook-2.1.lua:17: AceHook-2.1 requires AceLibrary. [C]: in function error'
...ace\AddOns!Questie\Libs\AceHook-2.1\AceHook-2.1.lua:17: in main chunk

Locals: (*temporary) = "AceHook-2.1 requires AceLibrary."
`

Message: ...AddOns\!Questie\Libs\AceLocale-2.2\AceLocale-2.2.lua:17: AceLocale-2.2 requires AceLibrary. Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...AddOns\!Questie\Libs\AceLocale-2.2\AceLocale-2.2.lua:17: AceLocale-2.2 requires AceLibrary. [C]: in function error'
...AddOns!Questie\Libs\AceLocale-2.2\AceLocale-2.2.lua:17: in main chunk

Locals: (*temporary) = "AceLocale-2.2 requires AceLibrary."
`

Message: ...ace\AddOns\!Questie\Libs\AceComm-2.0\AceComm-2.0.lua:17: AceComm-2.0 requires AceLibrary Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...ace\AddOns\!Questie\Libs\AceComm-2.0\AceComm-2.0.lua:17: AceComm-2.0 requires AceLibrary [C]: in function error'
...ace\AddOns!Questie\Libs\AceComm-2.0\AceComm-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceComm-2.0 requires AceLibrary"
`

Message: ...dOns\!Questie\Libs\AceConsole-2.0\AceConsole-2.0.lua:18: AceConsole-2.0 requires AceLibrary. Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...dOns\!Questie\Libs\AceConsole-2.0\AceConsole-2.0.lua:18: AceConsole-2.0 requires AceLibrary. [C]: in function error'
...dOns!Questie\Libs\AceConsole-2.0\AceConsole-2.0.lua:18: in main chunk

Locals: (*temporary) = "AceConsole-2.0 requires AceLibrary."
`

Message: ...Questie\Libs\AceModuleCore-2.0\AceModuleCore-2.0.lua:17: AceModuleCore-2.0 requires AceLibrary Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...Questie\Libs\AceModuleCore-2.0\AceModuleCore-2.0.lua:17: AceModuleCore-2.0 requires AceLibrary [C]: in function error'
...Questie\Libs\AceModuleCore-2.0\AceModuleCore-2.0.lua:17: in main chunk

Locals: (*temporary) = "AceModuleCore-2.0 requires AceLibrary"
`

Message: ...ace\AddOns\!Questie\Libs\Dewdrop-2.0\Dewdrop-2.0.lua:15: Dewdrop-2.0 requires AceLibrary Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...ace\AddOns\!Questie\Libs\Dewdrop-2.0\Dewdrop-2.0.lua:15: Dewdrop-2.0 requires AceLibrary [C]: in function error'
...ace\AddOns!Questie\Libs\Dewdrop-2.0\Dewdrop-2.0.lua:15: in main chunk

Locals: (*temporary) = "Dewdrop-2.0 requires AceLibrary"
`

Message: ...ns\!Questie\Libs\Babble-Zone-2.2\Babble-Zone-2.2.lua:15: Babble-Zone-2.2 requires AceLibrary Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...ns\!Questie\Libs\Babble-Zone-2.2\Babble-Zone-2.2.lua:15: Babble-Zone-2.2 requires AceLibrary [C]: in function error'
...ns!Questie\Libs\Babble-Zone-2.2\Babble-Zone-2.2.lua:15: in main chunk

Locals: (*temporary) = "Babble-Zone-2.2 requires AceLibrary"
`

Message: ...ns\!Questie\Libs\Babble-Boss-2.2\Babble-Boss-2.2.lua:15: Babble-Boss-2.2 requires AceLibrary Time: Sun Aug 11 07:11:42 2019 Count: 1 Stack: ...ns\!Questie\Libs\Babble-Boss-2.2\Babble-Boss-2.2.lua:15: Babble-Boss-2.2 requires AceLibrary [C]: in function error'
...ns!Questie\Libs\Babble-Boss-2.2\Babble-Boss-2.2.lua:15: in main chunk

Locals: (*temporary) = "Babble-Boss-2.2 requires AceLibrary"
`

`Message: [string "Questie:OnUpdate"]:1: attempt to call method 'OnUpdate' (a nil value)
Time: Sun Aug 11 07:16:18 2019
Count: 7504
Stack: [string "Questie:OnUpdate"]:1: attempt to call method 'OnUpdate' (a nil value)
[string ":OnUpdate"]:1: in function <[string ":OnUpdate"]:1>

Locals: self = Questie {
FlyoutBorderShadow = QuestieFlyoutBorderShadow {
}
HotKey = QuestieHotKey {
}
SpellHighlightAnim = {
}
NewActionTexture = {
}
cooldown = QuestieCooldown {
}
AutoCastShine = QuestieShine {
}
Border = QuestieBorder {
}
Flash = QuestieFlash {
}
AutoCastable = {
}
SpellHighlightTexture = {
}
Count = QuestieCount {
}
Name = QuestieName {
}
0 =
FlyoutArrow = QuestieFlyoutArrow {
}
icon = QuestieIcon {
}
FlyoutBorder = QuestieFlyoutBorder {
}
}
elapsed = 0.038000
(*temporary) = nil
(*temporary) = QuestieLua {
FlyoutBorderShadow = QuestieLuaFlyoutBorderShadow {
}
CheckPlayerInventory = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:208
AstroGetFinishedQuests = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:723
NewActionTexture = {
}
SanitisedQuestLookup = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1035
lastCollapsedCount = 0
Border = QuestieLuaBorder {
}
Flash = QuestieLuaFlash {
}
OnLoad_QuestEvents = defined @interface\AddOns!Questie\Questie.lua:225
getQuestHash = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1052
icon = QuestieLuaIcon {
}
IsQuestFinished = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1113
AutoCastable = {
}
MarkQuestAsFinished = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:94
CreateMinimapButton = defined @interface\AddOns!Questie\Modules\QuestieGUI.lua:5
collapsedThisRun = false
ParseQuestLoot = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:186
UpdateGameClientCache = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:292
UpdateQuests = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:492
HotKey = QuestieLuaHotKey {
}
LoadEQL3Fix = defined @interface\AddOns!Questie\Modules\QuestieTracker.lua:693
AstroGetQuestObjectives = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:795
finishAndRecurse = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:234
GetAvailableQuestHashes = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1194
AstroGetAllCurrentQuestHashesAsMeta = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:673
RemoveUniqueSuffix = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1042
UpdateQuestIds = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:1006
GetQuestIdFromHash = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:975
AutoCastShine = QuestieLuaShine {
}
AstroGetAllCurrentQuestHashes = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:632
FlyoutBorder = QuestieLuaFlyoutBorder {
}
SetupDefaults = defined @interface\AddOns!Questie\Questie.lua:18
CheckDefaults = defined @interface\AddOns!Questie\Questie.lua:66
SpellHighlightAnim = {
}
UpdateQuestInZone = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:533
OnLoad = defined @interface\AddOns!Questie\Questie.lua:204
BlockTranslations = defined @interface\AddOns!Questie\Questie.lua:195
0 =
SpellHighlightTexture = {
}
CheckQuestLog = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:340
OnQuestProgress = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:74
DetectQuestItem = defined @interface\AddOns!Questie\Modules\QuestieQuest.lua:164
`

`Message: Interface\AddOns!Questie\Modules\QuestieTracker.lua:59: attempt to index global 'QuestieConfig' (a nil value)
Time: Sun Aug 11 07:16:34 2019
Count: 7954
Stack: Interface\AddOns!Questie\Modules\QuestieTracker.lua:59: attempt to index global 'QuestieConfig' (a nil value)
Interface\AddOns!Questie\Modules\QuestieTracker.lua:59: in function <Interface\AddOns!Questie\Modules\QuestieTracker.lua:49>

Locals: (*temporary) = nil
(*temporary) = "ShaguQuest"
(*temporary) = "attempt to index global 'QuestieConfig' (a nil value)"
`

Message: Interface\AddOns\!Questie\Modules\QuestieArrow.lua:18: attempt to index local 'm' (a nil value) Time: Sun Aug 11 07:16:43 2019 Count: 297 Stack: Interface\AddOns\!Questie\Modules\QuestieArrow.lua:18: attempt to index local 'm' (a nil value) Interface\AddOns\!Questie\Modules\QuestieArrow.lua:18: in function GetPlayerFacing'
Interface\AddOns!Questie\Modules\QuestieArrow.lua:376: in function <Interface\AddOns!Questie\Modules\QuestieArrow.lua:368>

Locals: p = Minimap {
0 =
timer = 0
}
m = nil
(*temporary) = MiniMapTrackingFrame {
0 =
}
(*temporary) = nil
(*temporary) = "attempt to index local 'm' (a nil value)"
`

I included the errors at the ends of the report, WoW seems to Truncate these so if you need more information I'll do what I can, having said that, the stress test does end tomorrow. I saw an issue referring to astrolabe having conflicts with another addon but at this moment the only addon I have installed is questie. I haven't managed to get an addon on my mac to work in WoW yet so there may just be something I am unaware of.

Path is ⁩ ▸ ⁨Applications⁩ ▸ ⁨World of Warcraft⁩ ▸ ⁨_classic_⁩ ▸ ⁨Interface⁩ ▸ ⁨AddOns⁩ ▸ ⁨ !Questie

You are installing the vanilla version in classic client. Download the classic version here: https://github.com/AeroScripts/QuestieDev/releases/latest

Assumed solved, please re-open or create a new issue if you still have problems.