I was able to fix this error by going to Calender Settings -> alarms and unticking and ticking back each of calendar.
-- Evolution shows no alarm / notification for birthdays in local contacts https://bugs.launchpad.net/bugs/58540 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
