Email log not righ but failed

Hello

I want to monitor email log of urbackup.
I received an email with “success” on subject but in the body I’ve backup error:

UrBackup just did an incremental file backup of “srvcardc”.

Report:
( 19 infos, 1 warning, 1 error)

2024-11-29 12:01:00(info): Starting scheduled incremental file backup…
2024-11-29 12:02:44(error): backupcom->StartSnapshotSet(&dir->ref->ssetid) failed. VSS error code VSS_E_SNAPSHOT_SET_IN_PROGRESS
2024-11-29 12:02:44(warning): Retrying starting shadow copy in 30s
2024-11-29 12:02:44(info): Scanning for changed hard links on volume of "E:"…
2024-11-29 12:02:44(info): Indexing of “E” done. 2 filesystem lookups 2508 db lookups and 2 db updates
2024-11-29 12:02:44(info): Scanning for changed hard links on volume of "F:"…
2024-11-29 12:02:44(info): Indexing of “F” done. 269 filesystem lookups 42772 db lookups and 37 db updates
2024-11-29 12:02:44(info): Scanning for changed hard links on volume of "C:"…
2024-11-29 12:02:44(info): Indexing of “C” done. 866 filesystem lookups 51915 db lookups and 109 db updates
2024-11-29 12:02:44(info): srvcardc: Loading file list…
2024-11-29 12:02:45(info): srvcardc: Calculating file tree differences…
2024-11-29 12:02:47(info): srvcardc: Calculating tree difference size…
2024-11-29 12:02:47(info): srvcardc: Linking unchanged and loading new files…
2024-11-29 12:04:20(info): Waiting for file transfers…
2024-11-29 12:04:37(info): Waiting for file hashing and copying threads…
2024-11-29 12:04:38(info): Writing new file list…
2024-11-29 12:04:42(info): All metadata was present
2024-11-29 12:04:42(info): Creating user views…
2024-11-29 12:36:20(info): Transferred 2.93479 GB - Average speed: 224.81 MBit/s
2024-11-29 12:36:30(info): Time taken for backing up client srvcardc: 35m 30s
2024-11-29 12:36:30(info): Backup completed with issues

How can I’ve right subject?

My best regards