Error messages on Ubuntu 20.04

When installing on Ubuntu 20.04 using these commandline options:

wget -O - https://get.ispconfig.org | sh -s -- --use-nginx --use-php=7.4,8.0 --use-ftp-ports=41100-41200 --unattended-upgrades --no-mail --no-dns --interactive

The following errors showed up:

WARNING: Ignoring deprecated option SafeBrowsing at /etc/clamav/freshclam.conf:22
ERROR: Problem with internal logger (UpdateLogFile = /var/log/clamav/freshclam.log).
ERROR: initialize: libfreshclam init failed.
ERROR: Initialization error!
......
[INFO] Installed packages nginx-full, fcgiwrap
Failed to disable unit: Unit file apache2.service does not exist.```