Yep, that rules out the unclean shutdown and makes the sync errors much more important, since RAM is ECC and the second check found the same errors that's unlikely the reason, first suspect would be a disk.
Known issue with that Marvell controller, this works for some:
https://forums.unraid.net/bug-reports/stable-releases/disks-missing-after-upgrading-to-670-r536/?do=findComment&comment=4583
LSI controllers only trim SSDs with deterministic read after trim, and with recent firmwares SAS2 models can't trim any devices with Linux, SAS3 can (on the supported models).
See if this applies to you:
https://forums.unraid.net/topic/70529-650-call-traces-when-assigning-ip-address-to-docker-containers/
See also here:
https://forums.unraid.net/bug-reports/stable-releases/690691-kernel-panic-due-to-netfilter-nf_nat_setup_info-docker-static-ip-macvlan-r1356/