CTA - Failed to archive backup file

Hello

I am quite new to CTA, in fact i inherited the system. Could you point me to the right direction about a problem?

I receive the following error:

EMC CTA Alert ID: 701-0005 From Host: hostname/ip - Failed to archive backup file

Additional details:

Oct 19 00:34:40 FileManagementDa(5416){Backup} [15-92-5-106]: (ERROR) Failed to archive backup file "/var/fmbackup/fmbackup_10.0sp2_Mon_19-10-15_00_15.tgz"

What could cause such an error?

Thanks in advance for the help!

Best,

Peter