browser stop my website as virus

[championcy]

hello, my webhostingbuzz username is champion
and my site is championsarena.net and also at the same hosting i have
www.achilleas.com.cy and www.ampelbird.com.cy
what and three websites stop by browser (mozilla and chorme)

http://safebrowsing.clients.google.c...illeas.com.cy/

http://safebrowsing.clients.google.c...ionsarena.net/

well what i have to do?
thank you