Virus URL:Mal found, can't access server via browser

Hi

When I try to use Website Control in Control Panel, Avast block the site "box10.host1free.com:2222" from loading due to an infection URL:Mal. I don't want to disable Avast when I access the server because as I understand this virus is quite dangerous.

I'm using FF but I've got the same experience with Chrome and Safari. I did a scan with Avast and Malwarebytes but no infection on my pc. All other websites load just fine.

Any suggestions?

Thanks