Resolved
Dec 08 at 05:50pm EET
The httpsms.com web interface was unavailable for about 1 hour due to an issue with the database server where we store heartbeat updates.
The root cause of the problem has been identified and we've taken steps to migrate the heartbeats database to a new server.
No messages were lost during this period, but all heartbeats events sent by the mobile phone were not recorded.