Removing from the blacklist

Hello,
I hope that you can help me!
My name is Dr Yovko Haralanov .
Two years ago my site was attacked and it was very unpleasant. My site is a forum for veterinarians in Bulgaria( http://www.vvcbg.com/forum/index.php?act=idx). We have resolved the issue, but the virus checkers continue to retain information about this attack and block site for users who tried to access the site during this attack. Now I have members that have not access to the forum.
My question is - Is there procedure fro removing website from the blacklist?

Thank you very much!

Use the - Reporting Possible False Positive File or Website - https://www.avast.com/false-positive-file-form.php. This is direct to the avast virus labs.

It is not only avast that flag website as insecure. ESET, Bitdefenderā€™s TrafficLight, and other engines:
https://www.virustotal.com/gui/ip-address/79.124.67.24/relations
PHP version outdated: https://sitecheck.sucuri.net/results/www.vvcbg.com/forum/index.php?q=act%3Didx

Recommendations found through linting: https://webhint.io/scanner/86d48f9d-4cd0-413c-bb48-0305baa5324a

Wait for an avast team member to give a final verdict, as they are the only ones to come and unblock.

polonus (3rd party cold recon website security analyst and website error-hunter)

Detection was removed in 11.02.2020

Our virus specialists have been working on this problem and it has now been resolved. The provided website isn't detected by Avast anymore.