today my Oracle Linux Server 7.3 (installed on a Proxmox VM) just shows a gray window, where normaly the login prompt would be. The gray background is the regular "noisy" Oracle Server 7 wallpaper. I tried using ctrl+alt+FX ... after some seconds the whole server reboots.
Pinging the machine does not work. Can't connect to the oracle server either.
Has anyone an idea what could be wrong?!
Edit: I managed to start a single user shell but have no idea where to start honestly.