Oracle Solution for Error ora-16740

ORA-16740: redo transport service for standby database "string" incorrectly set to ALTERNATE

What triggered the Error:

The redo transport service to the standby database was set to ALTERNATE when no other destination was 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.