Website blocked - Site is defiinitely clean

One of my websites http://asign2u.co.uk/ is blocked with avast.
It is definitely clean and does not pose a threat.

I have checked:
https://www.virustotal.com/en/url/548218a912b1baba918bffb4fc5bc7684a024153bd64c8935a51025c89f77db5/analysis/1458661465/
http://zulu.zscaler.com/submission/show/62ce8a1e522b75470235ae19f6f4629e-1458661483

And all seems in order, Why is Avast still blocking it?

Thanks
Patricia

URL:Mal = Domain and/or IP is blacklisted.

http://urlquery.net/report.php?id=1458663255108
http://urlquery.net/report.php?id=1458663285067
http://multirbl.valli.org/lookup/91.109.14.218.html

asign2u.co.uk unblocked :wink: