Avast Blocked my website
http://dmitriyvegas.com/
avast version 11.2.2262
160609-0
As you can see in the message (image you posted), avast is not blocking your site but another one.
Yes avast but says that the online threat , I checked , but no virus found
URL:Mal = IP and/or domain is blocked.
http://zulu.zscaler.com/submission/show/b23ecf6483e49327e86eca10fd5464d3-1465485377
Remove the link to that site and everything should be fine.
How i can find this link ?
Look at the code of your website.