tfa orachk 'ORA-01034: ORACLE not available', 'Process ID: 0', 'Session ID: 0 Serial number: 0']

tfa 18.4.1  20181203 on redhat 6.7

orachk failure  'ORA-01034: ORACLE not available', 'Process ID: 0', 'Session ID: 0 Serial number: 0']

[root@cyraca1dr ~]#  /oracle/app/11.2.0/grid/bin/tfactl status

.------------------------------------------------------------------------------------------------.

| Host      | Status of TFA | PID  | Port | Version    | Build ID             | Inventory Status |

+-----------+---------------+------+------+------------+----------------------+------------------+

| cyraca1dr | RUNNING       | 2110 | 5000 | 18.4.1.0.0 | 18410020181203214803 | COMPLETE         |

'-----------+---------------+------+------+------------+----------------------+------------------'

[root@cyraca1dr ~]# cat /etc/redhat-release

Red Hat Enterprise Linux Server release 6.7 (Santiago)

[root@cyraca1dr ~]# /oracle/app/11.2.0/grid/tfa/cyraca1dr/tfa_home/ext/orachk/orachk -debug

Running orachk

----------------------------------------------------------

PATH                             : /oracle/app/11.2.0/grid/tfa/cyraca1dr/tfa_home/ext/orachk/

VERSION                          : 18.4.0_20181129

COLLECTIONS DATA LOCATION        : /oracle/app/11.2.0/grid/tfa/cyraca1dr/tfa_home/ext/orachk