Message: Interface/AddOns/Drift/DriftOptions.lua line 95:
attempt to call global 'InterfaceOptions_AddCategory' (a nil value)
Debug:
[string "@Interface/AddOns/Drift/DriftOptions.lua"]:95: SetupConfig()
[string "@Interface/AddOns/Drift/Drift.lua"]:530:
Interface/AddOns/Drift/Drift.lua:525

I am going to close this in favor of #64

look at issue #64, there are solutions to fix this