using civi 4.6.8
needed a notification sent to a volunteer when they sign up for an event. setup a scheduled reminder to catch the action. everything work ok and email was added to the queue in civicrm_action_schedule.
forced the job to execute.
Finished execution of Send Scheduled Reminders with result: Failure, Error message: API (ActionLog, get) does not exist (join the API team and implement it!)
it's telling the truth. i can't find ActionLog / Get in the API Explorer.