[ovirt-users] Impossible to snaphot certain virtual machines

Hello all, When performing snapshots I recieve the following error 2023-10-09 16:09:49,951: !!! No snapshot found !!! 2023-10-09 16:09:49,951: All backups done 2023-10-09 16:09:49,951: Backup failure for: 2023-10-09 16:09:49,951: ******* 2023-10-09 16:09:49,951: Some errors occurred during the backup, please check the log file Where can I look for more information? Where can I rise the verbosity ? What process should I look at ? Thanks all