1x AllTheThings\AllTheThings-Shadowlands-2.2.9-31-g6eca4ad.lua:62: AllTheThings\AllTheThings.lua:15284: Usage: GetItemInfoInstant(itemID|"name"|"itemlink")
[string "=[C]"]: in function error' [string "@AllTheThings\AllTheThings-Shadowlands-2.2.9-31-g6eca4ad.lua"]:94: in function ?'
[string "@AllTheThings\AllTheThings-Shadowlands-2.2.9-31-g6eca4ad.lua"]:62: in function <AllTheThings\AllTheThings.lua:59>
[string "@AllTheThings\src\base.lua"]:31: in function <AllTheThings\src\base.lua:30>

Locals:
(*temporary) = "AllTheThings\AllTheThings.lua:15284: Usage: GetItemInfoInstant(itemID|"name"|"itemlink")"

I do not know when and where except in combat

Technically this specific error location is a duplicate of #694, though I'm not sure why you would have gotten this in combat as it relates to opening a profession window where a recipe exists which does not actually craft an item. I'll try to take a look into a bit of refactoring of this logic to prevent this from happening in the future.