info task zstd error echo 0 error?

[simrsta]

hello
For the past few days, notifications like this have appeared on my Proxmox server, why?

 

[waltar]

zstd is used with vzdump pve backup cmd or when using zfs filesystem with zstd compression enabled.
Anywhy it's an I/O response problem to local or even a remote (eg. nfs) filesystem mostly "created" to bad dying disk anywhere or with remote storage not responding through any network problem ongoing.