Random crashes without any errors in log

I am new to proxmox and losing my mind about random crashes. The last crash happened 20 to 30 min after I last looked in some samba share. Sometimes I dont touch the server for a week and it just freezes. All case led and hdd led look normal but I am unable to ping or open the web interface. I looked in the system logs but there is nothing (I can recognize).

Is there another way to get a crash report. Or atleast automatic reboot after proxmox is unresponive

Here are the logs (crash and maual reboot at Dec 21 16:04:14):