APEX/Database instance on the OCI Free tier inexplicably stopped and cannot restart it
A couple of months ago I created an APEX instance on the OCI Free tier in the Milan region. I created an APEX application (with database 19c) for testing/prototyping and have logged in the instance at least every 3 days. I received no emails from Oracle saying that the instance/database will be stopped.
Yesterday (and today), I tried to log into it but I got an error:
The server instance or database seemed switched off for some reason. So I headed to the Tenancy Explorer to check on the database, and in fact it shows it is stopped: