Admin email is not configured.
When checking ocafsd.log, we find these errors every day:
2018-04-30 00:11:32 Error: Daily stats report cannot send. Admin email is not configured.
2018-04-30 00:11:32 please configure using user --update --name administrator --email_addr <>
2018-04-30 00:11:32 ocafsd[38791]: [38842] WARN: Failed to send Daily Report (c000000000000001)