Audacity won’t work for OSX El Captian


I’m trying to convert cassette tape to mp3 using Retround USB cassette tape player.
Audacity 2.3.2 comes up with a error message:

9986 Internal Port Audio error

Is this not compatible with El Caption?

I’ve also tried QuickTime Player - no luck.

Help? Thanks!

It should run on 10.11, El Capitan (the mountain). Macs back to 10.7, Lion are supported.

Are you using the USB connection? Close Audacity. Plug in the player, wait a bit for it to settle and then launch Audacity. Any better?