A hint? "i can confirm that using the beta installer from owncloud.org over the top of my debian install fixes contacts. this is a debian bug."
From: https://github.com/owncloud/contacts/issues/525#issuecomment-47867625 On 06/06/2014 01:55 PM, Kristjan Onu wrote: > Package: owncloud > Version: 6.0.3+dfsg-2 > Severity: normal > > Dear Maintainer, > > As of yesterday, all my ownCloud contacts have disappeared. Yesterday, > php5 was upgraded to version 5.6.0~beta3+dfsg-2 so I downgraded to > 5.5.12+dfsg-1 from snapshots.debian.org. This did not restore my > contacts.