Backup error

[kevin.gitlab]

This PVE Server always backup fail,

there have only three backup job per day(Include a LXC,and 2 VM),

Proxmox
Virtual Environment 6.4-15
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Support for Proxmox VE 6.4 ends on 2022-07-31
Container 112 (TP-Gitlab) on node 'Proxmox106' (backup)
VM_Backup_Proxmox106
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INFO: starting new backup job: vzdump 112 --storage local --mailnotification failure --compress lzo --node Proxmox106 --mode snapshot --quiet 1 --mailto willie.hsueh@tpisoftware.com
INFO: filesystem type on dumpdir is 'zfs' -using /var/tmp/vzdumptmp6774_112 for temporary files
INFO: Starting Backup of VM 112 (lxc)
INFO: Backup started at 2022-12-01 00:00:02
INFO: status = running
INFO: CT Name: TP-Gitlab
INFO: including mount point rootfs ('/') in backup
INFO: mode failure - some volumes do not support snapshots
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: CT Name: TP-Gitlab
INFO: including mount point rootfs ('/') in backup
INFO: starting first sync /proc/7592/root/ to /var/tmp/vzdumptmp6774_112
INFO: first sync finished - transferred 70.65G bytes in 1125s
INFO: suspending guest
INFO: starting final sync /proc/7592/root/ to /var/tmp/vzdumptmp6774_112
INFO: final sync finished - transferred 631.90M bytes in 53s
INFO: resuming guest
INFO: guest is online again after 53 seconds
INFO: creating vzdump archive '/var/lib/vz/dump/vzdump-lxc-112-2022_12_01-00_00_02.tar.lzo'
ERROR: Backup of VM 112 failed - command 'set -o pipefail && lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/var/tmp/vzdumptmp6774_112' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/var/tmp/vzdumptmp6774_112' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' . | lzop >/var/lib/vz/dump/vzdump-lxc-112-2022_12_01-00_00_02.tar.dat' failed: exit code 1
INFO: Failed at 2022-12-01 00:40:13
INFO: Backup job finished with errors

TASK ERROR: job errors