re-downloading deleted songs

[v_1985]

I had a couple of songs saved on my standard Android music player that for some reason failed to play in entirety, I deleted them as they had shown up on my Spotify app and I couldn't download them again. Now whenever I try to get them on Spotify the app completely closes down when I click on them. Any suggestions what on earth is going on?! I wouldn't have deleted them if I'd known it'd be such a nightmare to get them back again!!