AWS Fortigate instance incommunicado...

I have a Fortigate instance in AWS that I cannot get to with ssh or https. It was accessible since creation (months), then all of a sudden it was not. I can ping it, and (by using nmap) can see that ports 22, 443, 500 and 4500 are accessible and listening. Security is wide open to this instance. Any ideas what could be wrong?

The console image shows the following:

System is starting...
Serial number is FGTAWS000133210D


FGTAWS000133210D login: 
AWS instance-id: i-0133210d2e0c26da