In my case the error is now: "item.startDate is null". If someone is following here with the same problems with nextcloud, here I opened a new bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1721085 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846423 Title: Lightning: Cannot dismiss reminders. Got a VALUE parameter with an illegal type for property: VALUE=DURATION To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1846423/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
