Audirvana problem

Greetings!

Lately, I've been having problems with Audirvana. I've written to the company support desk a couple of times and searched their blog: no reply from support and nothing on the blog.

I’ve entirely deleted Audirvana (using the Mac “AppCleaner” software to purge all files). I re-downloaded the 3.3.50 version of the software from the Audirvana.com web site. I re-entered my license key (accepted), re-connected to Tidal (successful) and I continue to receive the file loading error message, “Unable to open audio file for playback.” That happens even with files downloaded to my computer. Of course, I've rebooted the computer, disconnected the VPN and I'm out of ideas.

Any suggestions on how to deal with this problem will be much appreciated.

Thanks,

Keith