Your site is hosted with 40 others on that same IP address (below) and many of those are infected.

http://www.urlvoid.com/ip/60.249.54.210/ also see http://urlquery.net/report.php?id=8950048.

So this may be that your site is blocked by IP address rather than domain name.

  • There is an on-line contact form, http://www.avast.com/contact-form.php?loadStyles for: * Sales inquiries; Technical issues; Website issues; Report false virus alert in file; Report false virus alert on website; Undetected Malware; Press (Media), issues.

  • If you are reporting an FP, then you get another input field open, enter the web URL for the site you wish to submit for review, etc. A link to this topic also wouldn’t hurt.