RRDC and RRD update errors

I had to replace my NUC, used the same RAM and SSD, proxmox booted up ok and VMs seem fine too, but I am seeing errors/warnings as below.
My node is "pve" but in the log points to "pve2-storage" (??)

I tried:
"hwclock --systohc"
and
systemctl stop rrdcached.service
rrdcached -P FLUSHALL
systemctl start rrdcached.service
but so far unsuccessfully.

Any help appreciated!
Thx

Sep 20 08:55:19 pve pmxcfs[1108]: [status] notice: RRDC update error /var/lib/rrdcached/db/pve2-storage/pve/VMs: -1
Sep 20...

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