Status: Unknown for all VMs and Drives

Verify pvestatd status and pvecm status. Restart it if necessary: systemctl restart pvestatd.service.
 
I've had this happen before when mounted NFS storage was under heavy load. Not sure if it had to do with the network being very loaded in general or NFS specific though.
 
root@proxmox:~# pvesm status
Name Type Status Total Used Available %
fourtb lvm active 3906465792 213909504 3692556288 5.48%
local dir active 70859944 16169684 51045028 22.82%
local-lvm lvmthin active 147623936 0 147623936 0.00%
sixtbone lvm active 5859962880 5851054080 8908800 99.85%
sixtbtwo lvm active 5859962880 375390208 5484572672 6.41%
ssd lvm active 999550976 180355072 819195904 18.04%
 
proxmox CRON[169135]: (root) CMD (/usr/local/emps/bin/php /usr/local/virtualizor/scripts/powercron.php >> /var/virtualizor/log/powercron 2>&1)
Dec 03 05:14:01 proxmox postfix/pickup[163708]: 7F249456FF: uid=0 from=<root>
Dec 03 05:14:01 proxmox postfix/cleanup[167500]: 7F249456FF: message-id=<20251202231401.7F249456FF@proxmox.mb7100.net>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: 7F249456FF: from=<root@proxmox.mb7100.net>, size=739, nrcpt=1 (queue active)
Dec 03 05:14:01 proxmox CRON[169130]: pam_unix(cron:session): session closed for user root
Dec 03 05:14:01 proxmox postfix/pickup[163708]: 820F145706: uid=0 from=<root>
Dec 03 05:14:01 proxmox postfix/cleanup[167500]: 820F145706: message-id=<20251202231401.820F145706@proxmox.mb7100.net>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: 820F145706: from=<root@proxmox.mb7100.net>, size=742, nrcpt=1 (queue active)
Dec 03 05:14:01 proxmox CRON[169131]: pam_unix(cron:session): session closed for user root
Dec 03 05:14:01 proxmox postfix/pickup[163708]: C938045708: uid=65534 from=<root>
Dec 03 05:14:01 proxmox postfix/cleanup[167500]: C938045708: message-id=<20251202231401.7F249456FF@proxmox.mb7100.net>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: C938045708: from=<root@proxmox.mb7100.net>, size=916, nrcpt=1 (queue active)
Dec 03 05:14:01 proxmox proxmox-mail-forward[169140]: notified via target `mail-to-root`
Dec 03 05:14:01 proxmox postfix/error[168350]: C938045708: to=<support@mb7100.net>, relay=none, delay=0.01, delays=0/0/0/0, dsn=4.4.1, status=deferred (deliv>
Dec 03 05:14:01 proxmox postfix/local[113743]: 7F249456FF: to=<root@proxmox.mb7100.net>, orig_to=<root>, relay=local, delay=0.31, delays=0/0/0/0.3, dsn=2.0.0>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: 7F249456FF: removed
Dec 03 05:14:01 proxmox postfix/pickup[163708]: CAAEB456FF: uid=65534 from=<root>
Dec 03 05:14:01 proxmox postfix/cleanup[167500]: CAAEB456FF: message-id=<20251202231401.820F145706@proxmox.mb7100.net>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: CAAEB456FF: from=<root@proxmox.mb7100.net>, size=919, nrcpt=1 (queue active)
Dec 03 05:14:01 proxmox proxmox-mail-forward[169141]: notified via target `mail-to-root`
Dec 03 05:14:01 proxmox postfix/error[168351]: CAAEB456FF: to=<support@mb7100.net>, relay=none, delay=0, delays=0/0/0/0, dsn=4.4.1, status=deferred (delivery>
Dec 03 05:14:01 proxmox postfix/local[131621]: 820F145706: to=<root@proxmox.mb7100.net>, orig_to=<root>, relay=local, delay=0.3, delays=0/0/0/0.3, dsn=2.0.0,>
Dec 03 05:14:01 proxmox postfix/qmgr[1793]: 820F145706: removed
Dec 03 05:14:23 proxmox kernel: EXT4-fs (dm-195): 4 orphan inodes deleted
Dec 03 05:14:23 proxmox kernel: EXT4-fs (dm-195): recovery complete
Dec 03 05:14:23 proxmox kernel: EXT4-fs (dm-195): mounted filesystem 894853d8-3ddf-4e1a-b7b4-4eb5de2b3331 r/w with ordered data mode. Quota mode: none.
Dec 03 05:14:23 proxmox kernel: kauditd_printk_skb: 112 callbacks suppressed
Dec 03 05:14:23 proxmox kernel: audit: type=1400 audit(1764717263.577:23674): apparmor="STATUS" operation="profile_load" profile="/usr/bin/lxc-start" name="l>
Dec 03 05:14:26 proxmox kernel: vmbr0: port 185(fwpr254p0) entered blocking state
Dec 03 05:14:26 proxmox kernel: vmbr0: port 185(fwpr254p0) entered disabled state
Dec 03 05:14:26 proxmox kernel: fwpr254p0: entered allmulticast mode
Dec 03 05:14:26 proxmox kernel: fwpr254p0: entered promiscuous mode