This error has been popping up a lot lately, usually when I loot something that's not a regular item:

Message: Interface\AddOns\LootRaffle\ItemFunctions.lua:5: Usage: GetItemInfo(itemID|"name"|"itemlink")
Time: Thu Dec 10 17:28:37 2020
Count: 36
Stack: Interface\AddOns\LootRaffle\ItemFunctions.lua:5: Usage: GetItemInfo(itemID|"name"|"itemlink")
[string "=[C]"]: in function GetItemInfo' [string "@Interface\AddOns\LootRaffle\ItemFunctions.lua"]:5: in function LootRaffle_GetTradableItemBagPosition'
[string "@interface\AddOns\LootRaffle\Raffler.lua"]:18: in function `LootRaffle_ProcessLootedItem'
[string "@interface\AddOns\LootRaffle\Raffler.lua"]:32: in function <Interface\AddOns\LootRaffle\Raffler.lua:32>

Locals: (*temporary) = nil

Seems to be pretty consistent when looting conjured items. (Both mage food & cauldron flasks)

Fixed in 1.2.3 (6fc443d)