Not possible to start Plesk Premium Antivirus after an update: file /var/drweb/lib/drweb32.dll is not Dr.Web engine

Symptoms

• After an update of DrWeb to v6.0.2.9, it cannot be started with the following error:
  

  # service drwebd start
  Starting Dr.Web drwebd…
  Dr.Web (R) daemon for Linux/Plesk Edition v6.0.2.9
  Copyright (c) Igor Daniloff, 1992-2024
  Doctor Web, Moscow, Russia
  Support service: http://support.drweb.com
  To purchase: http://buy.drweb.com
  DrWeb/Linux/Plesk Edition: file /var/drweb/lib/drweb32.dll is not Dr.Web engine!

Cause

Broken /var/drweb/lib/drweb32.dll file. The issue is fixed in the latest update.

Resolution

1. Connect to a Plesk server via SSH.
2. Execute the following commands:

   # /opt/drweb/update.pl

   # systemctl start drwebd