Spotydl not loading

This will not load even from techspot. Keep getting an error message on my macpro. Am I beating a dead horse? Any ideas? Only wanted to download my playlist to a USB to share at a party. Little did I know that I was going to get sucked into the tech vortex of despair and frustration 3 hours later.
 
Did you by chance read this
Security Notice: We've detected that Spotydl's installer might attempt to bundle third-party software. We suggest to proceed with caution and select the "Custom" installation option to identify any potential unwanted software.
I understand, let me download
Download options:
If you did, you need to check the box for it to download & during install, READ everything
 
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