False postive website?

Today I started to receive warning that a threat was blocked and connection with website stopped for a forum website.

website:
api.knockout.chat

infection:
BV:Downloader-AOD (Drp)

Other users of the website with different antivirus software detect no such threat.

Can you please check if it is false positive?

Report a false positive (select file or website)
https://www.avast.com/false-positive-file-form.php