rdkafka log errors about producer without producers

[M3mbrillo]

I, i have a empty laravel project, with only a a command like this

<?php 

class EchoEvent extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'kafka:events-consumer:echo';

    private EchoEventHandler $echoEventHandler;

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Listen the echo-event to ensure is alive!';

    public function __construct(
        EchoEventHandler $echoEventHandler
    ) {
        parent::__construct();
        $this->echoEventHandler = $echoEventHandler;
    }

    /**
     * Execute the console command.
     * @throws \Carbon\Exceptions\Exception
     */
    public function handle(): void
    {
        $this->output->info("Listening topic export-event");

        $consumer = Kafka::createConsumer()
            ->withConsumerGroupId('php-frank-kafka')
            // ->withSecurityProtocol('ssl')
            ->withOptions([
                'security.protocol' => 'ssl',
                'receive.message.max.bytes' => 2147483647,
                'ssl.key.password' => file_get_contents( storage_path() . '/app/user.password' ),
                'ssl.key.location' => storage_path() . '/app/user.key',
                'ssl.certificate.location' => storage_path() . '/app/user.crt'
                // 'ssl.key.pem' => 'Client's private key string (PEM format) used for authentication. Type: string'
            ])
            ->subscribe('echo-event')
            ->withHandler($this->echoEventHandler)
            ->build();
            
        $consumer->consume();
    }
}

and the echoEventHandler is vey very simple

class EchoEventHandler
{
    public function __construct()
    {
        
    }

    public function __invoke(KafkaConsumerMessage $message)
    {
        var_dump($message);
    }
}

its work fine without any problem, but after many seconds the next error is loged

%3|1687469709.378|FAIL|rdkafka#producer-2| [thrd:ssl://kafka.myserver:443/bootstrap]: ssl://kafka.myserver:443/bootstrap: Receive failed: error:0A000126:SSL routines::unexpected eof while reading (after 60058ms in state UP)

%3|1687469714.378|FAIL|rdkafka#consumer-1| [thrd:ssl://kafka.myserver:443/bootstrap]: ssl://kafka.myserver:443/bootstrap: Receive failed: error:0A000126:SSL routines::unexpected eof while reading (after 65059ms in state UP)

%3|1687469714.378|ERROR|rdkafka#consumer-1| [thrd:app]: rdkafka#consumer-1: ssl://kafka.myserver:443/bootstrap: Receive failed: error:0A000126:SSL routines::unexpected eof while reading (after 65059ms in state UP)

%3|1687469764.747|ERROR|rdkafka#producer-2| [thrd:app]: rdkafka#producer-2: ssl://kafka.myserver:443/bootstrap: Receive failed: error:0A000126:SSL routines::unexpected eof while reading (after 60058ms in state UP)

Does anyone know why a "producer-2" is created if I only have one consumer? and why is it giving the SSL error if the EchoEventHandler has no error?

thanks in advance!