Infinite Flow's installer puts your presets automatically in (your username)/Documents folder.
Please try to run the installer again, specifically making sure during the section where it asks you to locate your documents folder, that you are putting it in (your username)/Documents/
If this doesn't work
The software should have created a folder in (your username)/Documents/ folder called "SilenAudio". If that folder's presets are empty please download the file below and replace those folders with the downloaded folder.