Nil error access seg fault error

func (service *RemoteClusterService) formErrorFromValidatingRemotehost(ref *metadata.RemoteClusterReference, hostName string, port uint16, err error) error {

	if !ref.IsEncryptionEnabled() {

		// if encryption is not on, most likely the error is caused by incorrect hostname or firewall.

		return wrapAsInvalidRemoteClusterError(fmt.Sprintf("Could not connect to \"%v\" on port %v. This could be due to an incorrect host/port combination or a firewall in place between the servers.", hostName, port))

	} else {

		// if encryption is on, several different errors could be returned here, e.g., invalid hostname, invalid certificate, certificate by unknown authority, etc.

		// just return the err

		return wrapAsInvalidRemoteClusterError(err.Error())

	}

}