Failed to start 'corosync' in RHEL 7 cluster

Issue

• Failed to start cluster services, while it is configured to start during boot.

Nov 23 20:28:05 node1 corosync[600]: [MAIN  ] Corosync Cluster Engine ('2.3.3'): started and ready to provide service.
Nov 23 20:28:05 node1 corosync[600]: [MAIN  ] Corosync built-in features: dbus systemd xmlconf snmp pie relro bindnow
Nov 23 20:28:05 node1 corosync[600]: [MAIN  ] parse error in config: No interfaces defined               
Nov 23 20:28:05 node1 corosync[600]: [MAIN  ] Corosync Cluster Engine exiting with status 8 at main.c:1220.

Mar 11 08:49:21 node1 systemd[1]: Starting Corosync Cluster Engine...
Mar 11 08:49:21 node1 corosync[2336]:  [MAIN  ] Corosync Cluster Engine ('2.3.4'): started and ready to provide service.
Mar 11 08:49:21 node1 corosync[2336]:  [MAIN  ] Corosync built-in features: dbus systemd xmlconf snmp pie relro bindnow
Mar 11 08:49:51 node1 corosync[2336]:  [MAIN  ] parse error in config: No interfaces defined
Mar 11 08:49:51 node1 corosync[2336]:  [MAIN  ] Corosync Cluster Engine exiting with status 8 at main.c:1278.
Mar 11 08:49:51 node1 corosync[2319]: Starting Corosync Cluster Engine (corosync): [FAILED]
Mar 11 08:49:51 node1 systemd[1]: corosync.service: control process exited, code=exited status=1
Mar 11 08:49:51 node1 systemd[1]: Failed to start Corosync Cluster Engine.
Mar 11 08:49:51 node1 systemd[1]: Unit corosync.service entered failed state.
Mar 11 08:49:51 node1 systemd[1]: corosync.service failed.