Xttp://shkola-anjelica.ru/ site blocked by antivirus (avast free antivirus)
virus URL:MAL
https://sitecheck.sucuri.net/results/shkola-anjelica.ru
https://www.virustotal.com/ru/url/ca3940c4a7ece610b17543061d1051aa487e32b584dcaf8fdea2507d2b5b78e0/analysis/
http://app.webinspector.com/public/reports/86990542
http://www.urlvoid.com/scan/shkola-anjelica.ru/
Even if the site is replaced by an empty index.html, then the lock is not removed.
antiviruses from other manufacturers, do not cause a lock.