ESXi 6.5.0 crash (kernel panic?)

Hello,

We have an HP ProLiant DL360p Gen8 server.

In the last couple of days, we have had hangs on our VMs, nothing was respoding. We logged in into the console the see the crashdump you see on the image. Only solution is to reset the server via its IPM.

This server was working stablely for years.

We also did not change anything.

This is the exact name of the image we are using :

HPE-ESXi-6.5.0-OS-Release-iso-650.9.6.0.28 (Hewlett Packard Enterprise)

Could anybody point us to the right direction of what the error is about ? Why now, why all of sudden ?

Problem is we run our production DB VM on that machine. We'll move it to another machine until we figure out why this happpens.

Thanks

Alex