How can I download missing FX?

Questions
1

How can I download missing fxs that are shown in red letters?

2

What FX are you missing?

A few thoughts;

  1. Some FX might have been from a previous installation, or custom FX install?
  2. Some older FX may not be compatible with your current version of OSX
  3. Some FX may only run under Rosetta 2 if you are on an Apple Silicon Mac.