Can't configure clamav on Nextcloud for background scan

What app is this about, and its version: Nextcloud 33.0.2~ynh1
What YunoHost version are you running: YunoHost 12.1.39
What type of hardware are you using: Old laptop or computer

Describe your issue

Nextcloud can’t execute the background job for clamav

Step to reproduce:

  • install the app “Antivirus for file”
  • install clamav as explained here: Antivirus scanner — Nextcloud latest Administration Manual latest documentation
  • (sudo apt-get install clamav clamav-daemon)
  • ss -a|grep clam
    u_str LISTEN 0 4096 /run/clamav/clamd.ctl 2276539
  • configure nextcloud for: Daemon (socket), and socket to: /run/clamav/clamd.ctl
    → first error: clamav is not properly runnning so:
  • sudo systemctl restart clamav-daemon.service
  • Configure again the Nextcloud socket for: /run/clamav/clamd.ctl

But then Nextcloud can’t execute the background job

Share relevant logs or error messages

Error Call to a member function getUID() on null
Error while running background job OCA\Files_Antivirus\BackgroundJob\BackgroundScanner (id: 245, arguments: null)