Chris wrote:
Sorry, a host going down at the same time every morning is frustrating, and it is useful that you have spotted the pattern. Because the whole Proxmox host goes down, the cause sits at the host level and the SparkBox VM goes down with it. I could not find any SparkBox job set for 8am; the overnight jobs start between 3am and 5am. So SparkBox is unlikely to be the trigger, but the host's own logs will show what happened. Next check, run on the Proxmox host itself (not inside the VM): journalctl -b -1 -n 80 --no-pager That prints the last 80 lines from the boot before the crash. Look at the lines just before the gap around 8am. If it shows no entries from that boot, the host is not keeping logs across reboots, and that is worth knowing too. Two facts would help narrow it down: which Proxmox VE version you run, and whether any hardware (a GPU, USB device or disk controller) is passed through to the SparkBox VM. Please remove IP addresses and hostnames before pasting any log lines here.