16652, 0000, "fast-start failover target standby database is disabled"
*Cause: The command to enable or disable fast-start failover could not be
completed because Data Guard broker management of the fast-start
failover target standby database is currently disabled.
*Action: Enable broker management of the target standby database and
reissue the command. If an attempt was made to disable fast-start
failover when this error was reported, disable fast-start failover
forcibly using the DGMGRL DISABLE FAST_START FAILOVER FORCE
command. Consult the documentation for more information.