laravel queue - job failing without error message

I'm trying to use a job for massive data upload...the idea is use a job to send excel sheet one by one to webservice, which is in charge of insert data to DB. Here is my job code :

<?php

   namespace App\Jobs;

   use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;

use Facades\ {
App\Api\Insert
};

class uploadHoja implements ShouldQueue
{
  use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

private  $hojas;
/**
 * Create a new job instance.
 *
 * @return void
 */
public function __construct($hojas)
{
    $this->hojas = $hojas;
}
/**
 * Execute the job.
 *
 * @return void
 */
public function handle()
{

  $hojas = $this->hojas;
  foreach ($hojas as $key => $value) {

      $respuesta = Insert::insertData($value);
      $response = json_decode($response,true);
      dd($response);
      #if ($response["msg"] != 0) break;
  }
}
}

Insert it's a facade for the webservice class, every function inside of this class it's working fine ( I already tested every one), but for some reason the handle method of the job fails, and when I type "php artisan queue:work"...it just loop "Processing : App\Jobs\uploadHoja"...until I end the process manually. Any help ? Thank you for your time.

via Chebli Mohamed