[Owncloud] Contacts disappears

[Lord Awikatchikaen]

Hi,

I made an update on the master yesterday after (previous one was 2 weeks 
old) and all my contacts dissapears. The app says that there are no 
contact on my addressbook.

I checked the database and it seems that contacts are well in the 
oc_contacts_cards.

In apache log, I have this error :
" Array to string conversion in 
/opt/owncloud/apps/contacts/lib/vcard.php on line 82"

And in owncloud log:
"{"app":"contacts","message":"Addressbook not found: 
","level":3,"time":1339663904}"

what can i do to fix the problem ?