title: Cron job runs and stops mysteriously?
body: <p>I have a cron set on ubuntu to run some Laravel scheduled commands. It's running sometimes and stopping at random times. last week it did not run the commands for the whole week, the it started to run again yesterday. This morning it stopped again. I have tried everything but nothing seems to be solving the issue. What am i missing?</p>
  <p>Here is the cron:</p>
  <pre><code>*/15 * * * * ubuntu cd  /var/www/html  &amp;&amp; php artisan schedule:run &gt;&gt; /dev/null 2&gt;&amp;1 
  </code></pre>
  <p>And Here is my Kernel.php:</p>
  <pre><code>namespace App\Console;
  
  use Illuminate\Console\Scheduling\Schedule;
  use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
  
      class Kernel extends ConsoleKernel
  {
      /**
       * The Artisan commands provided by your application.
       *
       * @var array
       */
      protected $commands = [
          \App\Console\Commands\TrackData::class,
      ];
  
      /**
       * Define the application's command schedule.
       *
       * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
       * @return void
       */
      protected function schedule(Schedule $schedule)
      {
          $schedule-&gt;command('data:track')-&gt;withoutOverlapping()
              -&gt;everyFifteenMinutes()-&gt;appendOutputTo(storage_path().'/logs/laravel_output.log');
          
          $schedule-&gt;command('queue:listen')-&gt;withoutOverlapping()
           -&gt;everyFifteenMinutes()-&gt;appendOutputTo(storage_path().'/logs/laravel_output.log');
           
          $schedule-&gt;command('delete:oldxml')-&gt;withoutOverlapping()
              -&gt;dailyAt('00:01');
  
          // $schedule-&gt;command('sitemap:generate')
          //                 -&gt;daily();
      }
  
      /**
       * Register the commands for the application.
       *
       * @return void
       */
      protected function commands()
      {
          $this-&gt;load(__DIR__.'/Commands');
  
          require base_path('routes/console.php');
      }
  }
  </code></pre>
  <p>I've tried everything but nothing seems to solve the problem. What am i missing</p>