Acousticbrainz GUI App for Mac Question

Hi. Really wanting to analyze my music and upload to acousticbrainz. I have a problem though and can’t figure it out .

Everytime I point the extractor app to a folder that has aiff files in it. The app gives me a. Error that says there are no audio files in the folder.

I am currently re ripping my CD collection using XLD, adding and tagging them through musicbrainz, and putting them on my Plex server. I want to contribute to the music community as I have hundreds of CDs that I have bought over the last 20 years.

I am archiving my CD collection and figured my CDs could help the community. If anyone could please help me analyze my tracks and get them submitted that would be great.