It's been happening since Shadowlands atleast, but I've been able to ignore it since a reload always fixes it.
I've had to disable the addon for now - since this has been happening too often since TWW launch.

Essentially what it does, whenever you can press 12345 whatever keybinds you use to cast your abilities on your hotbars. You can't. Nothing happens - it just spits this error out. You can only mouse click your hotbar spells to cast them - this is very frustrating especially when you're mid combat.

2x [ADDON_ACTION_BLOCKED] AddOn 'BetterWardrobe' tried to call the protected function 'Button:SetPassThroughButtons()'.
[string "@!BugGrabber/BugGrabber.lua"]:485: in function <!BugGrabber/BugGrabber.lua:485>
[string "=[C]"]: in function SetPassThroughButtons' [string "@Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua"]:224: in function CheckMouseButtonPassthrough'
[string "@Blizzard_MapCanvas/Blizzard_MapCanvas.lua"]:209: in function AcquirePin' [string "@Blizzard_SharedMapDataProviders/BonusObjectiveDataProvider.lua"]:97: in function <...haredMapDataProviders/BonusObjectiveDataProvider.lua:92> [string "=[C]"]: in function xpcall'
[string "@Blizzard_ObjectAPI/Mainline/AsyncCallbackSystem.lua"]:76: in function FireCallbacks' [string "@Blizzard_ObjectAPI/Mainline/AsyncCallbackSystem.lua"]:35: in function <.../Blizzard_ObjectAPI/Mainline/AsyncCallbackSystem.lua:31> [string "=[C]"]: in function accessor'
[string "@Blizzard_ObjectAPI/Mainline/AsyncCallbackSystem.lua"]:52: in function AddCallback' [string "@Blizzard_ObjectAPI/Mainline/AsyncCallbackSystem.lua"]:60: in function AddCancelableCallback'
[string "@Blizzard_SharedMapDataProviders/BonusObjectiveDataProvider.lua"]:92: in function RefreshAllData' [string "@Blizzard_SharedMapDataProviders/BonusObjectiveDataProvider.lua"]:65: in function OnEvent'
[string "@Blizzard_MapCanvas/MapCanvas_DataProviderBase.lua"]:99: in function SignalEvent' [string "@Blizzard_MapCanvas/Blizzard_MapCanvas.lua"]:106: in function <...aceBlizzard_MapCanvas/Blizzard_MapCanvas.lua:105> [string "=[C]"]: in function secureexecuterange'
[string "@Blizzard_MapCanvas/Blizzard_MapCanvas.lua"]:109: in function `OnEvent'
[string "@Blizzard_WorldMap/Blizzard_WorldMap.lua"]:148: in function <...rfaceBlizzard_WorldMap/Blizzard_WorldMap.lua:147>
Locals:
_ = Frame {
}
event = "ADDON_ACTION_BLOCKED"
events =

{
}