Confused with how Ableton export works

I’m using the trial version of Live 10 Suite, and I recently finished a song that I wanted to upload to Spotify via CD Baby. When I uploaded the file it gives me an error, even if the export setting is all correct (I have checked multiple times).

I wanted to know why this keeps on happening, is it because I’m using the trial version and I need to buy Live before I export my songs?