Can help me avast block my site with HTML:Script-inf[Susp].

Avast is blocking our website https://www.metasport.com/ claiming that it is infected with HTML:Script-inf[Susp].

We believe it is a false positive.
We checked for virus in several websites from our host show site is not infected/blacklisted.
Also we checked website by Sucuri and all the reports say that it is clean of malware. https://unmask.sucuri.net/security-report/?page=www.metasport.com

Can someone here helps us checking these false positive issue and help us with the site unblock?
Thank you so much for your time.

See how to report it here.
https://forum.avast.com/index.php?topic=14433.msg1289438#msg1289438