Automatic Backup fails (backup_db.sh)

Hi,

I can’t get the automatic Database backup to work. I reinstalled the whole Docker setup, but the issue is the same. My base system Debian 8.

I tried to execute the skrip /backup_db.sh on the container CLI and got this output:

[email protected]:/# /backup-db.sh
Msg 3201, Level 16, State 1, Server b8a660fdfa50, Line 1
Cannot open backup device ‘/etc/bitwarden/mssql/backups/vault_FULL_20181108_203928.BAK’. Operating system error 2(The system cannot find the file specified.).
Msg 3013, Level 16, State 1, Server b8a660fdfa50, Line 1
BACKUP DATABASE is terminating abnormally

trying to simply create a file by “touch /etc/bitwarden/mssql/backups/testfile” was successfull and the file is accessible from the host system.

Any ideas what the issue could be?

Best regards,
crasher2k