problems in music uploads

So I have this dance track I did all the stuff properly
I zipped both mp3 and WAV within one ZIP file using an WinZip 5 (older version) but it doesn’t accept the upload and says “audios need to be a set” .

You have to choose both Mp3 and WAV in the menu:image
Do it by clicking them both while holding down Command ( on a Mac) or ctrl on pc.
Hope this helps!