Backup status fail Restic

NethServer Version: NethServer release 7.9.2009 (final)
Module: 3.10.0-1160.24.1.el7.x86_64

I have two nethserver instances, one with Active Directory where I only have domain users.

Backup: srv01
Backup started at 2021-04-15 10:07:02
Pre backup scripts status: SUCCESS
using parent snapshot e48ba785

Files: 0 new, 72 changed, 11 unmodified
Dirs: 0 new, 26 changed, 4 unmodified
Added to the repo: 12.609 MiB

processed 83 files, 14.660 MiB in 0:02
snapshot 94281703 saved
Action ‘backup-data-restic srv01’: SUCCESS
Post backup scripts status: SUCCESS
Backup status: SUCCESS
Backup ended at 2021-04-15 10:07:22
Time elapsed: 0 hours, 0 minutes, 20 seconds

The other with the shared folders, is giving error in the backup process.
I can’t find the problem

Backup: smb
Backup started at 2021-04-15 15:05:01
Pre backup scripts status: SUCCESS
created restic repository e779550513 at /mnt/backup-smb

Please note that knowledge of your password is required to access
the repository. Losing your password means that your data is
irrecoverably lost.
created new cache in /var/lib/nethserver/backup/restic/smb
no parent snapshot found, will read all files
Save(<data/97958c2846>) returned error, retrying after 552.330144ms: Sync: sync /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: input/output error
Save(<data/97958c2846>) returned error, retrying after 1.080381816s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 1.31013006s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 1.582392691s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 2.340488664s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 4.506218855s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 3.221479586s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 5.608623477s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 7.649837917s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Save(<data/97958c2846>) returned error, retrying after 15.394871241s: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Fatal: unable to save snapshot: OpenFile: open /mnt/backup-smb/data/97/97958c28463daa55dac14356dbe5da53d83970c828cbd0ba6a5a1a9822d2c527: no such file or directory
Backup failed
Action ‘backup-data-restic smb’: FAIL
Backup status: FAIL

I guess you are using cifs: I had many problems with cifs, I use nfs or sftp. Unfortunately, cifs is behind our control.

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