It seems that this isnt working anymore:
recipetype:create:mixing.removeRecipe(fluid:create:tea);

The script is taken directly from https://docs.blamejared.com/1.16/de/mods/Create/Mixing/

Ingame it says Parameter 0: cannot cast IFluidStack to IItemStack
I guess it doesnt recognize Fluids as an recipe output anymore. This script used to work on older versions tho

Fixed on discord, was using an old createtweaker

full script and log (/ct log) on pastebin please.