https://bugs.kde.org/show_bug.cgi?id=470477
--- Comment #6 from David Jarvie <djar...@kde.org> --- This problem is clearly due to Akonadi. It is because of its unreliability that KAlarm (since version 3, released in 2020 in KDE Apps 20.08) no longer uses Akonadi. Upgrading would be the most reliable way to fix the issue. In the meantime, I suggest trying the following. In each case, quit KAlarm first before running the fix. In a terminal window, run the commands akonadictl vacuum akonadictl fsck If that doesn't fix things, run the commands akonadictl stop rm ~/.config/akonadi_*kalarm*rc rm ~/.config/akonadi/*_kalarm* If that still doesn't fix things, all I can think of is to completely wipe Akonadi's configuration. WARNING: this should only be done if you don't use any other KDE PIM applications which use Akonadi, such as KMail, KOrganizer, KNotes (and possibly others), since those applications could lose data. It would be wise to back up all files and directories before deleting them, so that you can reinstate them afterwards if things go wrong. To wipe the Akonadi configuration, akonadictl stop rm -rf ~/.config/akonadi* rm -rf ~/.local/share/akonadi* -- You are receiving this mail because: You are watching all bug changes.