Shined up real nice.
It looks like you're new here. If you want to get involved, click one of these buttons!
download the videos but the mp3 comes with errors when playing it
Probably the mp3 is not fully downloaded. You can check the mp3 file, maybe it is 0 byte. The big chance is that your IP is blocked for downloading by the targeted website, or the taeget website does not allow for downloading.