Can you be more specific about the error message there are a few experts on here who can probably help given a bit more information.
Failing that, I am sure Pastor39 will appear like magic soon to sort you out, as he is the
mp3sale rep on here.
If you wish you can PM him a message and I am sure he will be in touch as soon as possible.
Hope this helps.
P.S. Have you actually contacted the site by email and reported it?