This seems to be the extent of the log from when I just now installed the 2 plugins.
Feb 13 13:05:29 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.1
Feb 13 13:05:43 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.1
Feb 13 13:06:26 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.1
Feb 13 13:06:29 nas warden: Building new Jail... Please wait...
Feb 13 13:06:29 nas warden: zfs clone POOL1/jails/.warden-template-pluginjail@clean POOL1/jails/owncloud_1
Feb 13 13:06:30 nas warden: Success!
Feb 13 13:06:30 nas warden: Jail created at /mnt/POOL1/jails/owncloud_1
Feb 13 13:06:30 nas bridge0: Ethernet address: 02:9d:b1:88:b2:00
Feb 13 13:06:30 nas kernel: bce0: promiscuous mode enabled
Feb 13 13:06:30 nas kernel: bridge0: link state changed to UP
Feb 13 13:06:30 nas kernel: bridge0: link state changed to UP
Feb 13 13:06:30 nas epair0a: Ethernet address: 02:c0:95:00:0e:0a
Feb 13 13:06:30 nas epair0b: Ethernet address: 02:c0:95:00:0f:0b
Feb 13 13:06:30 nas kernel: epair0a: link state changed to UP
Feb 13 13:06:30 nas kernel: epair0a: link state changed to UP
Feb 13 13:06:30 nas kernel: epair0b: link state changed to UP
Feb 13 13:06:30 nas kernel: epair0b: link state changed to UP
Feb 13 13:06:30 nas kernel: epair0a: promiscuous mode enabled
Feb 13 13:06:30 nas kernel: ng_ether_ifnet_arrival_event: can't re-name node epair0b
Feb 13 13:06:30 nas kernel: ng_ether_ifnet_arrival_event: can't re-name node epair0b
Feb 13 13:07:06 nas notifier: Performing sanity check on nginx configuration:
Feb 13 13:07:06 nas notifier: nginx: the configuration file /usr/local/etc/nginx/nginx.conf syntax is ok
Feb 13 13:07:06 nas notifier: nginx: configuration file /usr/local/etc/nginx/nginx.conf test is successful
Feb 13 13:07:15 nas manage.py: [freeadmin.navtree:567] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/treemenu: timed out
Feb 13 13:08:52 nas manage.py: [plugins.utils:91] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/status: No JSON object could be decoded
Feb 13 13:09:14 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.2
Feb 13 13:09:24 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.2
Feb 13 13:09:37 nas manage.py: [common.pipesubr:71] Popen()ing: /sbin/ping -q -t 2 -o 192.168.0.2
Feb 13 13:09:40 nas warden: Building new Jail... Please wait...
Feb 13 13:09:40 nas warden: zfs clone POOL1/jails/.warden-template-pluginjail@clean POOL1/jails/s3cmd_1
Feb 13 13:09:41 nas warden: Success!
Feb 13 13:09:41 nas warden: Jail created at /mnt/POOL1/jails/s3cmd_1
Feb 13 13:09:41 nas epair1a: Ethernet address: 02:e2:ae:00:0f:0a
Feb 13 13:09:41 nas epair1b: Ethernet address: 02:e2:ae:00:10:0b
Feb 13 13:09:41 nas kernel: epair1a: link state changed to UP
Feb 13 13:09:41 nas kernel: epair1a: link state changed to UP
Feb 13 13:09:41 nas kernel: epair1b: link state changed to UP
Feb 13 13:09:41 nas kernel: epair1b: link state changed to UP
Feb 13 13:09:41 nas kernel: epair1a: promiscuous mode enabled
Feb 13 13:09:41 nas kernel: ng_ether_ifnet_arrival_event: can't re-name node epair1b
Feb 13 13:09:41 nas kernel: ng_ether_ifnet_arrival_event: can't re-name node epair1b
Feb 13 13:09:51 nas notifier: Performing sanity check on nginx configuration:
Feb 13 13:09:51 nas notifier: nginx: the configuration file /usr/local/etc/nginx/nginx.conf syntax is ok
Feb 13 13:09:51 nas notifier: nginx: configuration file /usr/local/etc/nginx/nginx.conf test is successful
Feb 13 13:10:03 nas manage.py: [freeadmin.navtree:567] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/treemenu: timed out
Feb 13 13:10:03 nas manage.py: [freeadmin.navtree:567] Couldn't retrieve
http://XX.XX.XX.XX/plugins/s3cmd/2/_s/treemenu: timed out
Feb 13 13:12:28 nas manage.py: [plugins.utils:91] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/status: No JSON object could be decoded
Feb 13 13:12:28 nas manage.py: [plugins.utils:91] Couldn't retrieve
http://XX.XX.XX.XX/plugins/s3cmd/2/_s/status: No JSON object could be decoded
Feb 13 13:14:31 nas manage.py: [freeadmin.navtree:567] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/treemenu: timed out
Feb 13 13:14:31 nas manage.py: [freeadmin.navtree:567] Couldn't retrieve
http://XX.XX.XX.XX/plugins/s3cmd/2/_s/treemenu: timed out
Feb 13 13:15:55 nas manage.py: [plugins.utils:91] Couldn't retrieve
http://XX.XX.XX.XX/plugins/owncloud/1/_s/status: No JSON object could be decoded
Feb 13 13:15:55 nas manage.py: [plugins.utils:91] Couldn't retrieve
http://XX.XX.XX.XX/plugins/s3cmd/2/_s/status: No JSON object could be decoded