[2019-09-22 20:37:14] production.ERROR: Swift_TransportException: Expected response code 220 but got an empty response in /var/www/pterodactyl/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:445
Stack trace:
#0 /var/www/pterodactyl/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(358): Swift_Transport_AbstractSmtpTransport->assertResponseCode('', Array)
#1 /var/www/pterodactyl/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(147): Swift_Transport_AbstractSmtpTransport->readGreeting()
#2 /var/www/pterodactyl/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/SendmailTransport.php(50): Swift_Transport_AbstractSmtpTransport->start()
#3 /var/www/pterodactyl/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(65): Swift_Transport_SendmailTransport->start()
#4 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(479): Swift_Mailer->send(Object(Swift_Message), Array)
#5 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(259): Illuminate\Mail\Mailer->sendSwiftMessage(Object(Swift_Message))
#6 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Notifications/Channels/MailChannel.php(65): Illuminate\Mail\Mailer->send(Object(Illuminate\Support\HtmlString), Array, Object(Closure))
#7 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(144): Illuminate\Notifications\Channels\MailChannel->send(Object(Pterodactyl\Models\User), Object(Pterodactyl\Notifications\ServerInstalled))
#8 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(103): Illuminate\Notifications\NotificationSender->sendToNotifiable(Object(Pterodactyl\Models\User), '796c920b-efbf-4...', Object(Pterodactyl\Notifications\ServerInstalled), 'mail')
#9 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Support/Traits/Localizable.php(19): Illuminate\Notifications\NotificationSender->Illuminate\Notifications\{closure}()
#10 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(105): Illuminate\Notifications\NotificationSender->withLocale(NULL, Object(Closure))
#11 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php(57): Illuminate\Notifications\NotificationSender->sendNow(Object(Illuminate\Database\Eloquent\Collection), Object(Pterodactyl\Notifications\ServerInstalled), NULL)
#12 /var/www/pterodactyl/app/Notifications/ServerInstalled.php(43): Illuminate\Notifications\ChannelManager->sendNow(Object(Pterodactyl\Models\User), Object(Pterodactyl\Notifications\ServerInstalled))
#13 [internal function]: Pterodactyl\Notifications\ServerInstalled->handle(Object(Pterodactyl\Events\Server\Installed))
#14 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Events/CallQueuedListener.php(86): call_user_func_array(Array, Array)
#15 [internal function]: Illuminate\Events\CallQueuedListener->handle(Object(Illuminate\Foundation\Application))
#16 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(29): call_user_func_array(Array, Array)
#17 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(87): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#18 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(31): Illuminate\Container\BoundMethod::callBoundMethod(Object(Illuminate\Foundation\Application), Array, Object(Closure))
#19 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/Container.php(572): Illuminate\Container\BoundMethod::call(Object(Illuminate\Foundation\Application), Array, Array, NULL)
#20 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Bus/Dispatcher.php(94): Illuminate\Container\Container->call(Array)
#21 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(Illuminate\Events\CallQueuedListener))
#22 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Events\CallQueuedListener))
#23 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Bus/Dispatcher.php(98): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#24 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/CallQueuedHandler.php(49): Illuminate\Bus\Dispatcher->dispatchNow(Object(Illuminate\Events\CallQueuedListener), false)
#25 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Jobs/Job.php(83): Illuminate\Queue\CallQueuedHandler->call(Object(Illuminate\Queue\Jobs\DatabaseJob), Array)
#26 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Worker.php(327): Illuminate\Queue\Jobs\Job->fire()
#27 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Worker.php(277): Illuminate\Queue\Worker->process('database', Object(Illuminate\Queue\Jobs\DatabaseJob), Object(Illuminate\Queue\WorkerOptions))
#28 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Worker.php(118): Illuminate\Queue\Worker->runJob(Object(Illuminate\Queue\Jobs\DatabaseJob), 'database', Object(Illuminate\Queue\WorkerOptions))
#29 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Console/WorkCommand.php(102): Illuminate\Queue\Worker->daemon('database', 'high,standard,l...', Object(Illuminate\Queue\WorkerOptions))
#30 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Queue/Console/WorkCommand.php(86): Illuminate\Queue\Console\WorkCommand->runWorker('database', 'high,standard,l...')
#31 [internal function]: Illuminate\Queue\Console\WorkCommand->handle()
#32 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(29): call_user_func_array(Array, Array)
#33 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(87): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#34 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(31): Illuminate\Container\BoundMethod::callBoundMethod(Object(Illuminate\Foundation\Application), Array, Object(Closure))
#35 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Container/Container.php(572): Illuminate\Container\BoundMethod::call(Object(Illuminate\Foundation\Application), Array, Array, NULL)
#36 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Console/Command.php(183): Illuminate\Container\Container->call(Array)
#37 /var/www/pterodactyl/vendor/symfony/console/Command/Command.php(255): Illuminate\Console\Command->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Illuminate\Console\OutputStyle))
#38 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Console/Command.php(170): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Illuminate\Console\OutputStyle))
#39 /var/www/pterodactyl/vendor/symfony/console/Application.php(886): Illuminate\Console\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#40 /var/www/pterodactyl/vendor/symfony/console/Application.php(262): Symfony\Component\Console\Application->doRunCommand(Object(Illuminate\Queue\Console\WorkCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#41 /var/www/pterodactyl/vendor/symfony/console/Application.php(145): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#42 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Console/Application.php(89): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#43 /var/www/pterodactyl/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(122): Illuminate\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#44 /var/www/pterodactyl/artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#45 {main}