I'm getting this error in the cronlog. I don't know if this is important, but I wanted to report it anyways.

Execute scheduled task: Send e-mail reminders for upcoming appointments (mod_scheduler\task\send_reminders) ... started 11:43:44. Current memory use 9.2 MB. ++ The cron_setup_user() function is deprecated. Please use \core\cron::setup_user() and reset_user_cache() as appropriate instead. ++ * line 3833 of /lib/deprecatedlib.php: call to debugging() * line 83 of /mod/scheduler/classes/task/send_reminders.php: call to cron_setup_user() * line 405 of /lib/classes/cron.php: call to mod_scheduler\task\send_reminders->execute()