Comment # 1 on bug 67270 from Patrick Ohly

From the log file:

Processing Alert Item (code=200), Source='contacts', Target='card'
–
[2013-07-24 20:57:06.608] 'issue' - issuing command, Cmd=Status [--][++]
[->end] [->enclosing]

    [2013-07-24 20:57:06.608] WARNING: Non-OK Status 404 returned to remote!


In other words, your phone is configured to sync with a source called "card",
which does not exist in your server config. You can add an alias for the
"addressbook" source (which probably exists in your server config) by setting
"uri = card". But it is better to reconfigure the phone, if you can, or create
a dedicated "card" source on the server.