URGENT: RMAN and Legato SErver error

could someone help with the following error.

I am using RMAN, I am using Legato Server on a different host. I have Legato Client Installed, also I have installed Legato Networker Module for Oracle (v3.5).

Here is the script I am running

rman catalog rman817/rman817_at_rman817

connect target sys/manager_at_des2

run {
allocate channel c1 type 'SBT_TAPE' parms 'ENV=(NSR_SERVER=crash, NSR_GROUP=ORACLE_TEST)';
allocate channel c2 type 'SBT_TAPE' parms 'ENV=(NSR_SERVER=crash, NSR_GROUP=ORACLE_TEST)';
allocate channel c3 type 'SBT_TAPE' parms 'ENV=(NSR_SERVER=crash, NSR_GROUP=ORACLE_TEST)';
backup current controlfile
format 'cf_%d_t%t_s%s_p%p';
backup
incremental level 0
tag backup_level_0
filesperset 4
format 'ts_%d_t%t_s%s_p%p'
(database);

release channel c1;
release channel c2;
release channel c3;

Now when I am trying to run I receive this error:

RMAN-03007: retryable error occurred during execution of command: backup

RMAN-07004: unhandled exception during command execution on channel c1 RMAN-10035: exception raised in RPC: ORA-19506: failed to create sequential file
, name="cf_DES2_t466691558_s11_p1", parms="" ORA-27028: skgfqcre: sbtbackup returned error ORA-19511: nwora_index_ssinfo: index connect to crash.ntc.nokia.com failed for c
lient
esdeo02ntc: The feature "NetWorker Module for Oracle/1" is not properly enabled.
RMAN-10031: ORA-19624 occurred during call to DBMS_BACKUP_RESTORE.BACKUPPIECECRE
ATE br
km Received on Mon Jul 08 2002 - 11:43:16 CEST