When I ctrl+click an artifact apearance that I have not unlocked, this error will show up:

Message: Interface\FrameXML\CollectionsUtil.lua:71: bad argument #1 to 'sort' (table expected, got nil)
Time: Sun Aug 22 08:35:01 2021
Count: 1
Stack: Interface\FrameXML\CollectionsUtil.lua:71: bad argument #1 to 'sort' (table expected, got nil)
[string "@interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua"]:2781: in function GetAnAppearanceSourceFromVisual' [string "@Interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua"]:2077: in function DressUpVisual'
[string "@interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua"]:3019: in function <Interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:3000>

Locals: self = {
0 =
ClearAppearanceTooltip = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2882
ShadowCornerTopRight = {
}
IsAppearanceUsableForActiveCategory = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2957
GoToSourceID = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2836
SortVisuals = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2406
ModelR1C2 = {
}
transmogLocation =

{
}
OnUnitModelChangedEvent = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2183
OnShow = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2016
ShadowCornerLeft = {
}
ModelR1C6 = {
}
UpdateSlotButtons = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2887
BGCornerFilagreeBottomLeft = {
}
tooltipVisualID = 31208
lastWeaponCategory = 29
GetActiveCategory = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2197
ShadowCornerRight = {
}
ModelR3C2 = {
}
UpdateProgressBar = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2737
SetActiveCategory = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2302
ModelR1C5 = {
}
BGCornerBottomLeft = {
}
SelectVisual = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2793
FilterVisuals = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2377
GetAnAppearanceSourceFromVisual = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2778
BGCornerTopRight = {
}
ModelR1C1 = {
}
ShadowCornerBottomLeft = {
}
SlotsFrame = {
}
Bg = {
}
HiddenModel = {
}
OverlayShadowBottomLeft = {
}
ModelR2C6 = {
}
NineSlice = {
}
OnLoad = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:1939
CheckHelpTip = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:1959
OverlayShadowLeft = {
}
visualsList = {
}
SetTransmogrifierAppearancesShown = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2270
activeCategory = 29
PAGE_SIZE = 18
SetAppearanceTooltip = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2860
ChangeModelsSlot = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2114
RefreshVisualsList = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2754
ShadowLineTop = {
}
NUM_ROWS = 3
OverlayShadowRight = {
}
CreateSlotButtons = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:1857
ResetPage = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2350
BackgroundTile = {
}
ModelR3C1 = {
}
ModelR2C3 = {
}
CanHandleKey = defined @interface\AddOns\BetterWardrobe\Modules\Wardrobe.lua:2089
ModelR3C6 = {
}
RightClickDropDown = BetterWardrobeModelRightClickDropDown {
}
BGCornerBottomRight = {
}
OverlayShadowTop = {
}
Models = {
}
ShadowCornerTop = {
}
Model