Oracle Solution for Error ora-16800

ORA-16800: redo transport service for a standby database incorrectly set to ALTERNATE

What triggered the Error:

The redo transport service for a standby database was set to ALTERNATE when no other destination is set to alternate to this destination.

What should we do to fix it:

Reenable the standby database or the entire configuration to allow the configuration property settings to be propagated to the initialization parameters.