Eroare Plesk: „Update operation was locked by another update process”

La Tools & Settings → Updates and Upgrades (sau la instalatorul din CLI) poți primi eroarea „Update operation was locked by another update process” — cauzată de un proces de instalare Plesk care rulează deja.

Linux

ps aux | grep install | grep -v grep
kill <PID>
rm -f /tmp/psa-installer.lock

Windows

wmic process where "caption like '%installer%'" get processId,caption
taskkill /PID <PID> /F

Alternativ, oprește procesul din Task Manager → End task, apoi reia actualizarea.