Aug 11 11:09:48 WMLUnraid kernel: ata1: COMRESET failed (errno=-16)
Aug 11 11:09:48 WMLUnraid kernel: ata1: reset failed, giving up
Aug 11 11:09:48 WMLUnraid kernel: ata1.00: disabled
SSD cache dropped offline, but that's not a reason for the server crashing, still you need to fix that, check/replace cables, then enable the syslog server, start the parity sync and post that if it crashes again.