Packets out of order error

I'm getting the following error randomly when my method runs. Background, I have a function called "check" in my "Node" class. The method simply checks to see if the node is online or not. I have this method being called once a minute, to check nodes that need to be checked. This error, posted below, comes up randomly. What I mean by that is, the error does not occur every time the method runs. It does not occur in any sense of time either.

[2016-07-24 03:51:09] local.ERROR: ErrorException: Packets out of order. Expected 2 received 1. Packet size=12 in /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php:462
Stack trace:
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'Packets out of ...', '/var/www/vhosts...', 462, Array)
#1 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(462): PDO->prepare('update `core_no...')
#2 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(706): Illuminate\Database\Connection->Illuminate\Database{closure}(Object(Illuminate\Database\MySqlConnection), 'update `core_no...', Array)
#3 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(669): Illuminate\Database\Connection->runQueryCallback('update `core_no...', Array, Object(Closure))
#4 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(467): Illuminate\Database\Connection->run('update `core_no...', Array, Object(Closure))
#5 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(410): Illuminate\Database\Connection->affectingStatement('update `core_no...', Array)
#6 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2071): Illuminate\Database\Connection->update('update `core_no...', Array)
#7 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(531): Illuminate\Database\Query\Builder->update(Array)
#8 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1562): Illuminate\Database\Eloquent\Builder->update(Array)
#9 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1481): Illuminate\Database\Eloquent\Model->performUpdate(Object(Illuminate\Database\Eloquent\Builder), Array)
#10 /var/www/vhosts/cluster.io/clusterapp/app/Node.php(169): Illuminate\Database\Eloquent\Model->save()
#11 /var/www/vhosts/cluster.io/clusterapp/app/Console/Commands/NodeCheck.php(69): App\Node->check()
#12 [internal function]: App\Console\Commands\NodeCheck->handle()
#13 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Container/Container.php(507): call_user_func_array(Array, Array)
#14 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Console/Command.php(169): Illuminate\Container\Container->call(Array)
#15 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Command/Command.php(256): Illuminate\Console\Command->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#16 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Console/Command.php(155): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#17 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(791): Illuminate\Console\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#18 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(186): Symfony\Component\Console\Application->doRunCommand(Object(App\Console\Commands\NodeCheck), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#19 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(117): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#20 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(107): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#21 /var/www/vhosts/cluster.io/clusterapp/artisan(35): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#22 {main}

Next Illuminate\Database\QueryException: Packets out of order. Expected 2 received 1. Packet size=12 (SQL: update `core_nodes` set `updated_at` = 2016-07-24 03:51:07, `last_check` = 2016-07-24 03:51:02 where `id` = 7) in /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php:713
Stack trace:
#0 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(669): Illuminate\Database\Connection->runQueryCallback('update `core_no...', Array, Object(Closure))
#1 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(467): Illuminate\Database\Connection->run('update `core_no...', Array, Object(Closure))
#2 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Connection.php(410): Illuminate\Database\Connection->affectingStatement('update `core_no...', Array)
#3 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2071): Illuminate\Database\Connection->update('update `core_no...', Array)
#4 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(531): Illuminate\Database\Query\Builder->update(Array)
#5 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1562): Illuminate\Database\Eloquent\Builder->update(Array)
#6 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1481): Illuminate\Database\Eloquent\Model->performUpdate(Object(Illuminate\Database\Eloquent\Builder), Array)
#7 /var/www/vhosts/cluster.io/clusterapp/app/Node.php(169): Illuminate\Database\Eloquent\Model->save()
#8 /var/www/vhosts/cluster.io/clusterapp/app/Console/Commands/NodeCheck.php(69): App\Node->check()
#9 [internal function]: App\Console\Commands\NodeCheck->handle()
#10 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Container/Container.php(507): call_user_func_array(Array, Array)
#11 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Console/Command.php(169): Illuminate\Container\Container->call(Array)
#12 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Command/Command.php(256): Illuminate\Console\Command->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#13 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Console/Command.php(155): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#14 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(791): Illuminate\Console\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#15 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(186): Symfony\Component\Console\Application->doRunCommand(Object(App\Console\Commands\NodeCheck), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#16 /var/www/vhosts/cluster.io/clusterapp/vendor/symfony/console/Application.php(117): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#17 /var/www/vhosts/cluster.io/clusterapp/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(107): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#18 /var/www/vhosts/cluster.io/clusterapp/artisan(35): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#19 {main}

Here is the method in the Node Class

    public function check()
    {
        $this->last_check = Carbon::now();
        $this->save();
        if (current(Salt::CLI($this->dns_name, 'test.ping')))
        {
            if ($this->status == 0)
            {
                $this->setOnline();
            }
        }
        else
        {
            if ($this->status > 0)
            {
                $this->setOffline();
            }
        }

        return $this;
    }

And here is the task that runs each minute.

    public function handle()
    {
        if ($this->option('force'))
        {
            $interval = 0;
        }
        else
        {
            $interval = Setting::get('nodes_check_interval', true);
        }
        $nodes = Node::where('last_check', '<=', Carbon::now()->subMinutes($interval))->get();
        if (!$nodes)
        {
        exit();
        }
        foreach ($nodes as $node)
        {
            usleep(200000);
            $fork_pid = pcntl_fork();
            if ($fork_pid == -1)
            {
                die("Could not fork parent process");
            }
            if (!$fork_pid)
            {
                $node->check();
                exit();
            }
        }
        foreach ($nodes as $node)
        {
            pcntl_wait($status);
        }
        return true;
    }