Mousing over the Sightless Eye currency within the crafting frame (was looking up missing patters and where to find them) I received the following error. Thanks.

3x TipTacItemRef\ttItemRef.lua:2112: Usage: local isCurrencyContainer = C_CurrencyInfo.IsCurrencyContainer(currencyID, quantity)
[string "=[C]"]: in function IsCurrencyContainer' [string "@TipTacItemRef\ttItemRef.lua"]:2112: in function ?'
[string "@TipTacItemRef\ttItemRef.lua"]:451: in function SetHyperlink_Hook' [string "@TipTacItemRef\ttItemRef.lua"]:1327: in function <TipTacItemRef\ttItemRef.lua:1326> [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: in function SetHyperlink'
[string "@FrameXML\UIPanelTemplates.lua"]:276: in function <FrameXML\UIPanelTemplates.lua:272>

Locals:
(*temporary) = "1149"
(*temporary) = nil

Looks good. No issues from what I can see, Thanks.

I was able to reproduce this error. I fixed it in the current dev version:

TipTac-dev.zip

Works fine for you, too?