DBaaS: Backup to cloud failed with error "KBHS-00712: ORA-24263 Received From Local HTTP Service" (Doc ID 2384831.1)

OBKUP:: Oracle database state is up and running
catalog mode  no
OBKUP:: ARCHIVELOGS MANAGEMENT
OBKUP:: BACKING UP TO OSS
OBKUP:: Executing rman instructions
Connection string: /u01/app/oracle/product/12.1.0/dbhome_1/bin/rman msgno target /
-> SET ENCRYPTION ON;
-> BACKUP DEVICE TYPE SBT AS COMPRESSED BACKUPSET ARCHIVELOG ALL;
-> DELETE NOPROMPT ARCHIVELOG ALL BACKED UP 1 TIMES TO SBT_TAPE COMPLETED BEFORE 'SYSDATE - 1';
->  RMAN OUTPUT:

    Recovery Manager: Release 12.1.0.2.0 - Production on Tue Apr 3 11:34:36 2018

    Copyright (c) 1982, 2015, Oracle and/or its affiliates.  All rights reserved.

    RMAN-06005: connected to target database: ORCL (DBID=3548855743)

    RMAN>
    RMAN-03029: echo set on


    RMAN> SET ENCRYPTION ON;
    RMAN-03023: executing command: SET encryption
    RMAN-06009: using target database control file instead of recovery catalog


    RMAN> BACKUP DEVICE TYPE SBT AS COMPRESSED BACKUPSET ARCHIVELOG ALL;
    RMAN-03090: Starting backup at 03-APR-2018 11:34:40
    RMAN-03033: current log archived
    RMAN-00571: ===========================================================
    RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
    RMAN-00571: ===========================================================
    RMAN-03002: failure of backup command at 04/03/2018 11:34:46
    ORA-19554: error allocating device, device type: SBT_TAPE, device name:
    ORA-27023: skgfqsbi: media manager protocol error
    ORA-19511: non RMAN, but media manager or vendor specific failure, error text:
       KBHS-00715: HTTP error occurred 'oracle-error'
    KBHS-00712: ORA-24263 received from local HTTP service  <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


    RMAN> DELETE NOPROMPT ARCHIVELOG ALL BACKED UP 1 TIMES TO SBT_TAPE COMPLETED BEFORE 'SYSDATE - 1';
    RMAN-08030: allocated channel: ORA_DISK_1
..........
..........
    RMAN-08515: archived log file name=/u03/app/oracle/fast_recovery_area/ORCL/archivelog/2018_03_31/o1_mf_1_1216_fcy5h7lk_.arc thread=1 sequence=1216


    RMAN> set echo off;
    RMAN-03030: echo set off

    RMAN>

    Recovery Manager complete.
OBKUP::ERROR An http error was detected please verify your connectivity
OBKUP:: ..... FAIL
OBKUP::ERROR Cannot complete the Archivelogs Backup to Cloud Storage
OBKUP::ERROR KBHS-00715 HTTP CONNECTION ERROR
OBKUP::ERROR An http error was detected please verify your connectivity
OBKUP:: Message sent to DB alertlog.
OBKUP:: Message sent to System log.
OBKUP:: Clean MOTD.
OBKUP:: Message sent to MOTD.