Social stopped pulling new Facebook likes/comments

Hi,

Social used to successfully pull new likes/comments on broadcasts from Facebook to my blog. However, for the past 2-3 days, it hasn’t pulled anything new from Facebook. Twitter is still working.

I’ve enabled the debug_log.txt and I’m not seeing anything useful when the cron fires:

[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Running cron_15_init
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Running request: CRON/action_cron_15
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Attempting semaphore lock
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Set semaphore last lock time to 2013-06-25 00:02:42
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Semaphore lock complete.
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Running social_cron_15_action.
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Decremented the semaphore by 1.
[SOCIAL - 2013-06-25 00:02:42 - 2607:f298:4:141::110:141] Semaphore unlocked.

I know there are at least 4 likes that are waiting to be pulled, though.

http://wordpress.org/extend/plugins/social/