Could not start firefox. Exit code: 139 (Segmentation violation).

Hi!

<?php
namespace App\Controller\Cursos\ContenidoCurso;

use App\Service\CursosDataAccess;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Panther\Client;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;

<?php
    namespace App\Controller\Cursos\ContenidoCurso;

    use App\Service\CursosDataAccess;
    use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
    use Symfony\Component\HttpFoundation\JsonResponse;
    use Symfony\Component\HttpFoundation\Request;
    use Symfony\Component\HttpFoundation\Response;
    use Symfony\Component\Panther\Client;
    use Symfony\Component\Routing\Annotation\Route;
    use Symfony\Component\Security\Core\Exception\AccessDeniedException;

    if (!$request->request->has('course_id') || !$request->request->has('url')){
        throw new AccessDeniedException();
    }else{
        $course_id = $request->request->get('course_id');
        $url = $request->request->get('url');
        if (
            is_null($course_id)
         || is_null($url)
         || $dataAccess->getCurso($course_id)["cod_empresa"] != $this->getUser()->getCodEmpresa()
         || !$this->isGranted('ROLE_GESTOR')) {
            throw new AccessDeniedException();
        }
    }
    $client = Client::createFirefoxClient('assets/drivers/geckodriver', null, ['capabilities' => ['acceptInsecureCerts' => true]]);
    $crawler = $client->request('GET', $url);
    $id_array = array();
    $crawler->filter('a.overview-list-item__link')->each(function ($node) use(&$id_array) {
        $module_id = $node->attr('href');
        $module_id = explode('/', $module_id);
        $id_array[] = $module_id[count($module_id) - 1];
    });
    $titles_array = array();
    $crawler->filter('div.overview-list-item__title')->each(function ($node) use(&$titles_array) {
        $titles_array[] = $node->text();
    });
    for ($i = 0; $i < count($id_array); $i++){
        $dataAccess->createModulo($course_id, $titles_array[$i], "", $id_array[$i]);
    }
    $success = true;
    $response = array(
        'success' => $success,
        'content' => $success ? $this->renderView('Cursos/panels/modulos.html.twig', [
            "data" => [
                        "curso" => $dataAccess->getCurso($course_id),
                        "modulos" => $dataAccess->getModulos($course_id)
                    ]
        ]) : null,
    );
    return new JsonResponse(json_encode($response));
?>

When I run the previous code, I'm getting the error mentioned in the title that comes from vendor/symfony/panther/src/ProcessManager/WebServerReadinessProbeTrait.php -more specifically from the condition "if (Process::STATUS_TERMINATED === $status)" in line 52-.

The bin file, geckodriver (version 0.31.0), has its permissions set to 777 because initially I was getting a "Permission denied" error and when I specify a wrong route the error tells me that, so I don't think that the problem is related to the file. I have tried too to change the driver from geckodriver to chromedriver and the used method to createFirefoxClient to createChromeClient, but I'm getting the same error.

I'm starting to think that this problem is related with the server, but if you know what could be its cause I think that I will solve this problem more easily.

Thank you for your help!

symfony / panther

Could not start firefox. Exit code: 139 (Segmentation violation). #558