To Reproduce
Error on login
I am using the Classic Style

Game details:

Wago Analytics Disabled
Only addons running are Bartender and Spartan

Additional context
1x ...ce/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:165: attempt to index field 'AccountSettings' (a nil value)
[string "@Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua"]:165: in function <...ce/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:144>
[string "=[C]"]: ?
[string "@Interface/AddOns/Bartender4/libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:66: in function <...AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:61>
[string "@Interface/AddOns/Bartender4/libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:523: in function EnableAddon' [string "@Interface/AddOns/Bartender4/libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:536: in function EnableAddon'
[string "@Interface/AddOns/Bartender4/libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:626: in function <...AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:611>
[string "=[C]"]: in function LoadAddOn' [string "@Interface_Wrath/FrameXML/UIParent.lua"]:398: in function UIParentLoadAddOn'
[string "@Interface_Wrath/FrameXML/UIParent.lua"]:456: in function `RaidFrame_LoadUI'
[string "@Interface_Wrath/FrameXML/RaidFrame.lua"]:55: in function <Interface_Wrath/FrameXML/RaidFrame.lua:50>

Locals:
self =

{
Database = {
}
SetDefaultModuleLibraries = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:363
description = "CORE: SUI Unitframes"
Enable = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:290
UnregisterAllEvents = defined @Interface/AddOns/Bartender4/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
DB = {
}
EnableModule = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:328
modules = {
}
GetModule = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:206
IterateEmbeds = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:438
baseName = "SpartanUI"
Options = {
}
defaultModuleLibraries = {
}
TimeLeft = defined @Interface/AddOns/SpartanUI/libs/Ace3/AceTimer-3.0/AceTimer-3.0.lua:172
MonitoredBuffs = {
}
UpdateGroupFrames = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/SpawnFrames.lua:310
UpdateAll = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/SpawnFrames.lua:297
ScheduleRepeatingTimer = defined @Interface/AddOns/SpartanUI/libs/Ace3/AceTimer-3.0/AceTimer-3.0.lua:129
CancelAllTimers = defined @Interface/AddOns/SpartanUI/libs/Ace3/AceTimer-3.0/AceTimer-3.0.lua:160
SpawnFrames = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/SpawnFrames.lua:202
CalculateHeight = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/SpawnFrames.lua:5
SetDefaultModulePrototype = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:405
DisplayName = "Unit frames"
Unit = {
}
SetActiveStyle = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:221
name = "SpartanUI_Module_UnitFrames"
OnEnable = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:144
IsEnabled = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:447
orderedModules = {
}
ScheduleTimer = defined @Interface/AddOns/SpartanUI/libs/Ace3/AceTimer-3.0/AceTimer-3.0.lua:94
DisableModule = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:346
defaultModuleState = true
ScaleFrames = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:233
Elements = {
}
Update = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:209
RegisterMessage = defined @Interface/AddOns/Bartender4/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:80
UnregisterMessage = defined @Interface/AddOns/Bartender4/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:143
MountIds = {
}
Auras = {
}
IsFriendlyFrame = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:47
OnInitialize = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:119
ResetSettings = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:94
IsModule = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:213
PositionFrame = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:61
SetDefaultModuleState = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:383
FindStatusBarTexture = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:40
debug = defined @Interface/AddOns/SpartanUI/modules/UnitFrames/Framework.lua:34
SetEnabledState = defined @Interface/AddOns/Bartender4/libs/AceAddon-3.0/AceAddon-3.0.lua:420
SendMessage = defined @Interface/AddOns/Bartender4/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:49
enabledState = true
CurrentSettings = {
}
RegisterEvent = defined @Interface/AddOns/Bartender4/libs/CallbackHandler-1.0/CallbackHandler-1