Every site on domain is listed as malicious

Hello,
I’m the CTO of the company that operates bang.com (NSFW - adult site) and Avast is reporting malware on all the sites.
We acquired the domain last year and built a brand new website
The site is clean:
https://www.virustotal.com/en/url/da720b90f2199cf212232b888d120d8acd7c8d8b729327adf1c530e7fe1c9142/analysis/

It even says this one is infected:
http://development.affiliates.bang.com/
even though this is a simple login page right now

Anybody has an idea how I can get the domain removed from the blacklist?
Let me know if there’s anything to fix on my side

Thank you,

You can report a suspected FP here: https://support.avast.com/support/tickets/new?form=3

VirusTotal doesn’t scan websites, it checks several blacklists.

avast doesn’t say that there is malware.
URL:Mal = IP and/or Domain is blacklisted

http://www.web-malware-removal.com/website-malware-virus-scanner/?url=www.bang.com
http://www.urlvoid.com/scan/bang.com/

There could be CloudFlare abuse, and there is room for some improved security measures to be taken: https://securityheaders.io/?q=www.bang.com
The only script running there is from -http://cdn.bang.com/assets/js/app.min.js?v=20160326071902
Some issues: Results from scanning URL: -http://cdn.bang.com/assets/js/app.min.js?v=20160326071902
Number of sources found: 524
Number of sinks found: 178
Re: http://toolbar.netcraft.com/site_report?url=cdn.bang.com
NetDNA-cache/2.2 exploit has a cache managing issue!
Also issues here on reverse DNS: http://toolbar.netcraft.com/site_report?url=http://23.111.10.101.rdns.as15003.net

polonus