Error in Reboot APs

[knot1a]

2013-05-13 04:51:31,581 - INFO - [REBOOT] Today is a reboot day
2013-05-13 04:51:31,581 - INFO - [REBOOT] Selected time to reboot: 04:50
2013-05-13 04:51:31,581 - INFO - [REBOOT] Rebooting all APs with name prefix (and those without name):
2013-05-13 04:51:31,825 - ERROR - =========

state

Traceback (most recent call last):
File "unifi_lab.py", line 341, in continuousLoop
self.doPeriodicReboot()
File "unifi_lab.py", line 303, in doPeriodicReboot
self._ctlr.ctlr_reboot_ap(reboot_ap_name_prefix)
File "/usr/lib/unifi/unifi-lab/unifi_lab_ctlrobj.py", line 113, in ctlr_reboot_ap
if ap['state'] != 1:
KeyError: 'state'