I get this error upon logging into the game. No other addons loaded

1x Auctionator\AuctionatorFilters.lua:70: attempt to call global 'GetAuctionItemSubClasses' (a nil value)
[string "@Auctionator\AuctionatorFilters.lua"]:70: in function `GenerateSubClasses'
[string "@Auctionator\AuctionatorFilters.lua"]:98: in main chunk

Locals:
classID = 2
parentName = "Weapon"
parentKey = "Weapon"
(*temporary) =

{
}
(*temporary) = nil
(*temporary) = 2
(*temporary) = "attempt to call global 'GetAuctionItemSubClasses' (a nil value)"