I just re-activated Rarefied only to find it throws LUA-errors.

Message: ...ace\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:212: attempt to index field '?' (a nil value)
Time: Sat Apr 24 12:29:31 2021
Count: 1
Stack: ...ace\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:212: attempt to index field '?' (a nil value)
[string "@interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua"]:212: in function RemovePin' [string "@Interface\AddOns\Rarefied\Rarefied.lua"]:38: in function <Interface\AddOns\Rarefied\Rarefied.lua:35> [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: in function OnMapChanged'
[string "@interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua"]:59: in function SetMapID' [string "@Interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua"]:760: in function NavigateToParentMap'
[string "@interface\AddOns\Blizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua"]:127: in function <...lizzard_MapCanvas\MapCanvas_ScrollContainerMixin.lua:102>

Locals: self = WorldMapFrame {
HandleUserActionOpenQuestLog = defined @interface\FrameXML\QuestLogOwnerMixin.lua:84
ShouldPanOnClick = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:659
GetMinZoomViewRect = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:679
PanTo = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:626
HandleUserActionOpenSelf = defined @interface\FrameXML\QuestLogOwnerMixin.lua:91
AreDetailLayersLoaded = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:436
RemovePin = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:207
OnCanvasScaleChanged = defined =[C]:-1
RemoveGlobalPinMouseActionHandler = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:811
OnQuestLogOpen = defined @interface\FrameXML\QuestLogOwnerMixin.lua:219
CalculatePinNudging = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:326
OnCanvasSizeChanged = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:582
ApplyPinPosition = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:494
SetAreaTriggerIntersectsCallback = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:272
ShouldZoomInstantly = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:667
HandleUserActionToggleQuestLog = defined @interface\FrameXML\QuestLogOwnerMixin.lua:44
NavBar = {
}
pinNudgingDirty = true
SetGlobalPinScale = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:869
RefreshDebugAreaTriggers = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:384
SetShouldNavigateOnClick = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:647
NavigateToParentMap = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:757
SetDebugAreaTriggersEnabled = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:408
SetFocusedQuestID = defined =[C]:-1
UnregisterEvents = defined @interface\SharedXML\CallbackRegistry.lua:81
EvaluateLockReasons = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:729
GetGlobalPinScale = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:865
SetDisplayState = defined @interface\FrameXML\QuestLogOwnerMixin.lua:99
TitleCanvasSpacerFrame = {
}
OnLoad = defined @interface\AddOns\Blizzard_WorldMap\Blizzard_WorldMap.lua:82
RemoveDataProviderEvent = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:120
GetNumActivePinsByTemplate = defined @interface\AddOns\Blizzard_MapCanvas\Blizzard_MapCanvas.lua:223
SetPinTemplateType = defined @interface\AddOns\Bliz