Sending a backup from premisses to an OCI Bucket

Hello,

I have been following documentation  https://docs.oracle.com/en/solutions/migrate-database-with-rman/create-backup-source-database1.html#GUID-11EF4110-EB95-474C-9945-14D87A366700  and so far, I am able to make a good connection with the bucket; however, the backup always fail:

run

{

CONFIGURE DEFAULT DEVICE TYPE TO SBT_TAPE;

CONFIGURE BACKUP OPTIMIZATION ON;

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%F';

CONFIGURE ENCRYPTION FOR DATABASE ON;

allocate channel c1 device type sbt PARMS 'SBT_LIBRARY=/var/lib/oracle/dbfw/lib/libopc.so,SBT_PARMS=(OPC_PFILE=/home/oracle/config)';

allocate channel c2 device type sbt PARMS 'SBT_LIBRARY=/var/lib/oracle/dbfw/lib/libopc.so,SBT_PARMS=(OPC_PFILE=/home/oracle/config)';