Nothing found on analysis from:
http://sitecheck.sucuri.net/results/deltagames.co.uk/http://www.urlvoid.com/scan/deltagames.co.uk/That said it appears that there are other domains hosted on that IP address, so this may be the case. But there is a function script on the home page that is creating an iframe, so I don't know if the target for that iframe might be what avast is alerting on, the URL:MAL, indicates a site that is considered malicious.
Other than that I can't see anything obvious.
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.