Lost SSH Access

Merry Christmas, everyone!
Just wanted to make a post asking if anyone was familiar with resources to reestablish ssh connection to my server. I followed the guide to setup a free minecraft server on Oracle Cloud and am quite familiar with the technology, but any time the server reboots, it closes the SSH port and I can no longer access it to get in and run my server. I have tried the built in cloud console, but it requests a password I do not have. I try to connect with PUTTY, but always get a Network Error: Connection Timed Out error that I can't seem to fix.

If anyone has information for me about how I can fix this, it would be greatly appreciated!