Owncloud CalDAV stopped synching with Thunderbird/Outlook (via CalDavSync)

[anon81984126]

You need to somehow get access to your database to fix that broken calendar entry:

Calendar could not be synced or exported

All of a sudden I could not sync one of my calendars with my iPhone or Thunderbird any more. Since all my other calendars would sync as normal, it probably could not be a problem of my server configuration. While the calendar was shown in the web interface properly, I discovered that I could not export the calendar as well. Then I found this: https://tigr.net/4346/2015/09/03/broken-events-in-owncloud-calendar/ Indeed, my database contained one entry with invalid data which caused all the troub…