Harvester falla porque "object id does not exist"

[defvol]

[admin@app-datos-gob-mx ~]$ tail -f /var/log/ckan/default/fetch_consumer.log
2014-09-03 01:47:04,875 INFO [ckanext.harvest.queue] Received harvest object id: da972967-21e4-4a8a-ad7d-2b937e9f1210
2014-09-03 01:47:04,878 ERROR [ckanext.harvest.queue] Harvest object does not exist: da972967-21e4-4a8a-ad7d-2b937e9f1210
2014-09-03 01:47:04,879 INFO [ckanext.harvest.queue] Received harvest object id: 59f8d17b-1e4d-4893-87b1-5f974f41efbe
2014-09-03 01:47:04,882 ERROR [ckanext.harvest.queue] Harvest object does not exist: 59f8d17b-1e4d-4893-87b1-5f974f41efbe
2014-09-03 01:47:04,884 INFO [ckanext.harvest.queue] Received harvest object id: 08bce83c-5a91-49cf-900b-c6850792c0b4
2014-09-03 01:47:04,898 ERROR [ckanext.harvest.queue] Harvest object does not exist: 08bce83c-5a91-49cf-900b-c6850792c0b4
2014-09-03 01:47:04,900 INFO [ckanext.harvest.queue] Received harvest object id: bb893246-c6f1-412b-b574-f06aedb8440c
2014-09-03 01:47:04,903 ERROR [ckanext.harvest.queue] Harvest object does not exist: bb893246-c6f1-412b-b574-f06aedb8440c
2014-09-03 01:47:04,905 INFO [ckanext.harvest.queue] Received harvest object id: 76e8d0f2-8c46-4bba-b1e3-6776f3274033
2014-09-03 01:47:04,908 ERROR [ckanext.harvest.queue] Harvest object does not exist: 76e8d0f2-8c46-4bba-b1e3-6776f3274033