Unable to Schedule the Backup from DB13

We are unable to scheduled the backup from DB13 but in brtools if we run the backup it is running.
There is restoration activity happening in system after competition that activity we are unable to scheduled the backup from DB13.
Database system ORACLE
Release 10.2.0.4.0
Operating system AIX
ERROR:
17.07.2013 23:32:01 Job started
17.07.2013 23:32:01 Step 001 started (program RSDBAJOB, variant &0000000008612, user ID WIPROBASIS)
17.07.2013 23:32:01 Execute logical command BRBACKUP On host tpcqas
17.07.2013 23:32:01 Parameters:-u / -jid TAPIN20130717233201 -i force -c force -n 1 -v SCRATCH
17.07.2013 23:32:04 BR0051I BRBACKUP 7.00 (41)
17.07.2013 23:32:04 BR0055I Start of database backup: belqxovh.tib 2013-07-17 23.32.01
17.07.2013 23:32:04 BR0484I BRBACKUP log file: /oracle/QAS/sapbackup/belqxovh.tib
17.07.2013 23:32:04 BR0280I BRBACKUP time stamp: 2013-07-17 23.32.02
17.07.2013 23:32:04 BR0301W SQL error -1017 at location BrDbConnect-2, SQL statement:
17.07.2013 23:32:04 'CONNECT /'
17.07.2013 23:32:04 ORA-01017: invalid username/password; logon denied
17.07.2013 23:32:04 BR0310W Connect to database instance QAS failed
17.07.2013 23:32:04
17.07.2013 23:32:04 BR0205I Backup volume initialization
17.07.2013 23:32:04 BR0058I BRBACKUP action ID: belqxovh
17.07.2013 23:32:04 BR0059I BRBACKUP function ID: tib
17.07.2013 23:32:04 BR0102I Following backup device will be used: /dev/rmt1.1
17.07.2013 23:32:04 BR0131I All volumes get the name SCRATCH
17.07.2013 23:32:04 BR0129I Force option set - no label checking during initialization
17.07.2013 23:32:04 BR0134I Unattended mode with 'force' active - no operator confirmation allowed
17.07.2013 23:32:04
17.07.2013 23:32:04 BR0207I Volume in device: /dev/rmt1.1 will be initialized with name: SCRATCH
17.07.2013 23:32:04
17.07.2013 23:32:04 BR0280I BRBACKUP time stamp: 2013-07-17 23.32.02
17.07.2013 23:32:04 BR0226I Rewinding tape volume in device /dev/rmt1...
17.07.2013 23:32:04 17.07.2013 23:32:04 BR0202I Copying /oracle/QAS/sapbackup/.tape.hdr0
17.07.2013 23:32:04 BR0203I to /dev/rmt1.1 ...
17.07.2013 23:32:04 17.07.2013 23:32:04 BR0209I Volume in device /dev/rmt1.1 has name SCRATCH
17.07.2013 23:32:04 17.07.2013 23:32:04 BR0280I BRBACKUP time stamp: 2013-07-17 23.32.04
17.07.2013 23:32:04 BR0226I Rewinding tape volume in device /dev/rmt1...
17.07.2013 23:32:04 BR0280I BRBACKUP time stamp: 2013-07-17 23.32.04
17.07.2013 23:32:04 BR0301E SQL error -1017 at location BrDbConnect-2, SQL statement:
17.07.2013 23:32:04 'CONNECT /'
17.07.2013 23:32:04 ORA-01017: invalid username/password; logon denied
17.07.2013 23:32:04 BR0310E Connect to database instance QAS failed
17.07.2013 23:32:04 17.07.2013 23:32:04 BR0206I End of backup volume initialization
17.07.2013 23:32:04 BR0280I BRBACKUP time stamp: 2013-07-17 23.32.04
17.07.2013 23:32:04 BR0054I BRBACKUP terminated with errors
17.07.2013 23:32:04 External program terminated with exit code 3
17.07.2013 23:32:04 BRBACKUP returned error status E
17.07.2013 23:32:04 Job finished