Failed to start the session because headers have already been sent by "/var/vhost/fasa/web/vendor/symfony/http-foundation/Response.php" at line 368. (500 Internal Server Error)

Symfony Exception

Symfony Docs

InvalidArgumentException RuntimeException

HTTP 500 Internal Server Error

Failed to start the session because headers have already been sent by "/var/vhost/fasa/web/vendor/symfony/http-foundation/Response.php" at line 368.

Exceptions 2

RuntimeException

in /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php (line 152)
  1.         if (\PHP_SESSION_ACTIVE === session_status()) {
  2.             throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3.         }
  5.         if (filter_var(ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOLEAN) && headers_sent($file, $line)) {
  6.             throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
  7.         }
  9.         // ok to try and start the session
  10.         if (!session_start()) {
  11.             throw new \RuntimeException('Failed to start the session.');
in /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php -> start (line 323)
  1.         }
  3.         if (!$this->started && $this->saveHandler->isActive()) {
  4.             $this->loadSession();
  5.         } elseif (!$this->started) {
  6.             $this->start();
  7.         }
  9.         return $this->bags[$name];
  10.     }
in /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php -> getBag (line 251)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function getBag($name)
  5.     {
  6.         $bag = $this->storage->getBag($name);
  8.         return method_exists($bag, 'getBag') ? $bag->getBag() : $bag;
  9.     }
  11.     /**
in /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php -> getBag (line 273)
  1.      *
  2.      * Note that this method was added to help with IDE autocompletion.
  3.      */
  4.     private function getAttributeBag(): AttributeBagInterface
  5.     {
  6.         return $this->getBag($this->attributeName);
  7.     }
  8. }
in /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php -> getAttributeBag (line 65)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function has($name)
  5.     {
  6.         return $this->getAttributeBag()->has($name);
  7.     }
  9.     /**
  10.      * {@inheritdoc}
  11.      */
Session->has() in /var/vhost/fasa/web/src/EventListener/RequestListener.php (line 32)
  1.     }
  3.     public function onKernelController(FilterControllerEvent $event)
  4.     {
  5.         $recintos = $this->em->getRepository(RecintoFeria::class)->findAll();
  6.         if (!$event->getRequest()->getSession()->has('recinto') && count($recintos) > 0 && false) {
  7.             $clientIP = $event->getRequest()->getClientIp();
  8.             $subnet = explode(".", $clientIP);
  9.             $subnet[3] = '0';
  10.             $subnet = implode(".", $subnet);
  11.             $recinto = current(array_filter($recintos, function($e) use($subnet) { return $e->getSubnet() == $subnet; }));
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onKernelController (line 126)
  1.         $this->called = true;
  2.         $this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
  4.         $e = $this->stopwatch->start($this->name, 'event_listener');
  6.         ($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
  8.         if ($e->isStarted()) {
  9.             $e->stop();
  10.         }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 264)
  1.     {
  2.         foreach ($listeners as $listener) {
  3.             if ($event->isPropagationStopped()) {
  4.                 break;
  5.             }
  6.             $listener($event, $eventName, $this);
  7.         }
  8.     }
  10.     /**
  11.      * Sorts the internal list of listeners for the given event by priority.
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> doDispatch (line 239)
  1.      * @param object     $event     The event object to pass to the event handlers/listeners
  2.      */
  3.     protected function callListeners(iterable $listeners, string $eventName, $event)
  4.     {
  5.         if ($event instanceof Event) {
  6.             $this->doDispatch($listeners, $eventName, $event);
  8.             return;
  9.         }
  11.         $stoppable = $event instanceof ContractsEvent || $event instanceof StoppableEventInterface;
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 73)
  1.         } else {
  2.             $listeners = $this->getListeners($eventName);
  3.         }
  5.         if ($listeners) {
  6.             $this->callListeners($listeners, $eventName, $event);
  7.         }
  9.         return $event;
  10.     }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 168)
  1.         try {
  2.             $this->beforeDispatch($eventName, $event);
  3.             try {
  4.                 $e = $this->stopwatch->start($eventName, 'section');
  5.                 try {
  6.                     $this->dispatcher->dispatch($event, $eventName);
  7.                 } finally {
  8.                     if ($e->isStarted()) {
  9.                         $e->stop();
  10.                     }
  11.                 }
in /var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 146)
  1.         if (false === $controller = $this->resolver->getController($request)) {
  2.             throw new NotFoundHttpException(sprintf('Unable to find the controller for path "%s". The route is wrongly configured.', $request->getPathInfo()));
  3.         }
  5.         $event = new ControllerEvent($this, $controller, $request, $type);
  6.         $this->dispatcher->dispatch($event, KernelEvents::CONTROLLER);
  7.         $controller = $event->getController();
  9.         // controller arguments
  10.         $arguments = $this->argumentResolver->getArguments($request, $controller);
in /var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 80)
  1.     public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
  2.     {
  3.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  5.         try {
  6.             return $this->handleRaw($request, $type);
  7.         } catch (\Exception $e) {
  8.             if ($e instanceof RequestExceptionInterface) {
  9.                 $e = new BadRequestHttpException($e->getMessage(), $e);
  10.             }
  11.             if (false === $catch) {
in /var/vhost/fasa/web/vendor/symfony/http-kernel/EventListener/ErrorListener.php -> handle (line 60)
  2.         $exception = $event->getThrowable();
  3.         $request = $this->duplicateRequest($exception, $event->getRequest());
  5.         try {
  6.             $response = $event->getKernel()->handle($request, HttpKernelInterface::SUB_REQUEST, false);
  7.         } catch (\Exception $e) {
  8.             $f = FlattenException::createFromThrowable($e);
  10.             $this->logException($e, sprintf('Exception thrown when handling an exception (%s: %s at %s line %s)', $f->getClass(), $f->getMessage(), $e->getFile(), $e->getLine()));
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onKernelException (line 126)
  1.         $this->called = true;
  2.         $this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
  4.         $e = $this->stopwatch->start($this->name, 'event_listener');
  6.         ($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
  8.         if ($e->isStarted()) {
  9.             $e->stop();
  10.         }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 264)
  1.     {
  2.         foreach ($listeners as $listener) {
  3.             if ($event->isPropagationStopped()) {
  4.                 break;
  5.             }
  6.             $listener($event, $eventName, $this);
  7.         }
  8.     }
  10.     /**
  11.      * Sorts the internal list of listeners for the given event by priority.
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> doDispatch (line 239)
  1.      * @param object     $event     The event object to pass to the event handlers/listeners
  2.      */
  3.     protected function callListeners(iterable $listeners, string $eventName, $event)
  4.     {
  5.         if ($event instanceof Event) {
  6.             $this->doDispatch($listeners, $eventName, $event);
  8.             return;
  9.         }
  11.         $stoppable = $event instanceof ContractsEvent || $event instanceof StoppableEventInterface;
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 73)
  1.         } else {
  2.             $listeners = $this->getListeners($eventName);
  3.         }
  5.         if ($listeners) {
  6.             $this->callListeners($listeners, $eventName, $event);
  7.         }
  9.         return $event;
  10.     }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 168)
  1.         try {
  2.             $this->beforeDispatch($eventName, $event);
  3.             try {
  4.                 $e = $this->stopwatch->start($eventName, 'section');
  5.                 try {
  6.                     $this->dispatcher->dispatch($event, $eventName);
  7.                 } finally {
  8.                     if ($e->isStarted()) {
  9.                         $e->stop();
  10.                     }
  11.                 }
in /var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 219)
  1.      * @throws \Exception
  2.      */
  3.     private function handleThrowable(\Throwable $e, Request $request, int $type): Response
  4.     {
  5.         $event = new ExceptionEvent($this, $request, $type, $e);
  6.         $this->dispatcher->dispatch($event, KernelEvents::EXCEPTION);
  8.         // a listener might have replaced the exception
  9.         $e = $event->getThrowable();
  11.         if (!$event->hasResponse()) {
in /var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php -> handleThrowable (line 112)
  1.     {
  2.         if (!$request = $request ?: $this->requestStack->getMasterRequest()) {
  3.             throw $exception;
  4.         }
  6.         $response = $this->handleThrowable($exception, $request, self::MASTER_REQUEST);
  8.         $response->sendHeaders();
  9.         $response->sendContent();
  11.         $this->terminate($request, $response);
in /var/vhost/fasa/web/vendor/symfony/http-kernel/EventListener/DebugHandlersListener.php -> terminateWithException (line 129)
  1.                         if ($hasRun) {
  2.                             throw $e;
  3.                         }
  5.                         $hasRun = true;
  6.                         $kernel->terminateWithException($e, $request);
  7.                     };
  8.                 }
  9.             } elseif ($event instanceof ConsoleEvent && $app = $event->getCommand()->getApplication()) {
  10.                 $output = $event->getOutput();
  11.                 if ($output instanceof ConsoleOutputInterface) {
in /var/vhost/fasa/web/vendor/symfony/error-handler/ErrorHandler.php :: Symfony\Component\HttpKernel\EventListener\{closure} (line 601)
  1.             $this->exceptionHandler = null;
  2.         }
  4.         try {
  5.             if (null !== $exceptionHandler) {
  6.                 return $exceptionHandler($exception);
  7.             }
  8.             $handlerException = $handlerException ?: $exception;
  9.         } catch (\Throwable $handlerException) {
  10.         }
  11.         if ($exception === $handlerException && null === $this->exceptionHandler) {
ErrorHandler->handleException()

InvalidArgumentException

The Swiftmailer URL "gmail://a:blocalhost" is not valid.
in /var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerTransportFactory.php (line 99)
  1.             'stream_options' => [],
  2.         ];
  4.         if (isset($options['url'])) {
  5.             if (false === $parts = parse_url($options['url'])) {
  6.                 throw new \InvalidArgumentException(sprintf('The Swiftmailer URL "%s" is not valid.', $options['url']));
  7.             }
  8.             if (isset($parts['scheme'])) {
  9.                 $options['transport'] = $parts['scheme'];
  10.             }
  11.             if (isset($parts['user'])) {
in /var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerTransportFactory.php :: resolveOptions (line 30)
  1.      *
  2.      * @throws \InvalidArgumentException if the scheme is not a built-in Swiftmailer transport
  3.      */
  4.     public static function createTransport(array $options, RequestContext $requestContext = null, \Swift_Events_EventDispatcher $eventDispatcher)
  5.     {
  6.         $options = static::resolveOptions($options);
  8.         self::validateConfig($options);
  9.         if ('smtp' === $options['transport']) {
  10.             $smtpAuthHandler = new \Swift_Transport_Esmtp_AuthHandler([
  11.                 new \Swift_Transport_Esmtp_Auth_CramMd5Authenticator(),
in /var/vhost/fasa/web/var/cache/dev/ContainerZm6s6AM/srcApp_KernelDevDebugContainer.php :: createTransport (line 4988)
  1.         include_once \dirname(__DIR__, 4).'/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport.php';
  2.         include_once \dirname(__DIR__, 4).'/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerTransportFactory.php';
  3.         include_once \dirname(__DIR__, 4).'/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Events/EventDispatcher.php';
  4.         include_once \dirname(__DIR__, 4).'/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Events/SimpleEventDispatcher.php';
  6.         return $this->services['swiftmailer.mailer.default.transport.real'] = \Symfony\Bundle\SwiftmailerBundle\DependencyInjection\SwiftmailerTransportFactory::createTransport(['transport' => 'smtp', 'url' => $this->getEnv('MAILER_URL'), 'username' => NULL, 'password' => NULL, 'host' => 'localhost', 'port' => NULL, 'timeout' => 30, 'source_ip' => NULL, 'local_domain' => NULL, 'encryption' => NULL, 'auth_mode' => NULL, 'command' => '/usr/sbin/sendmail -t -i', 'stream_options' => []], ($this->privates['router.request_context'] ?? $this->getRouter_RequestContextService()), ($this->privates['swiftmailer.mailer.default.transport.eventdispatcher'] ?? ($this->privates['swiftmailer.mailer.default.transport.eventdispatcher'] = new \Swift_Events_SimpleEventDispatcher())));
  7.     }
  9.     /**
  10.      * Gets the public 'swiftmailer.transport' shared service.
  11.      *
in /var/vhost/fasa/web/vendor/symfony/dependency-injection/Container.php -> getSwiftmailer_Mailer_Default_Transport_RealService (line 257)
  2.         try {
  3.             if (isset($this->fileMap[$id])) {
  4.                 return /* self::IGNORE_ON_UNINITIALIZED_REFERENCE */ 4 === $invalidBehavior ? null : $this->load($this->fileMap[$id]);
  5.             } elseif (isset($this->methodMap[$id])) {
  6.                 return /* self::IGNORE_ON_UNINITIALIZED_REFERENCE */ 4 === $invalidBehavior ? null : $this->{$this->methodMap[$id]}();
  7.             }
  8.         } catch (\Exception $e) {
  9.             unset($this->services[$id]);
  11.             throw $e;
in /var/vhost/fasa/web/vendor/symfony/dependency-injection/Container.php -> make (line 231)
  1.      */
  2.     public function get($id, $invalidBehavior = /* self::EXCEPTION_ON_INVALID_REFERENCE */ 1)
  3.     {
  4.         $service = $this->services[$id]
  5.             ?? $this->services[$id = $this->aliases[$id] ?? $id]
  6.             ?? ('service_container' === $id ? $this : ($this->factories[$id] ?? [$this, 'make'])($id, $invalidBehavior));
  8.         if (!\is_object($service) && null !== $service) {
  9.             @trigger_error(sprintf('Non-object services are deprecated since Symfony 4.4, please fix the "%s" service which is of type "%s" right now.', $id, \gettype($service)), \E_USER_DEPRECATED);
  10.         }
in /var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/EventListener/EmailSenderListener.php -> get (line 61)
  1.                     $transport = $mailer->getTransport();
  2.                     if ($transport instanceof \Swift_Transport_SpoolTransport) {
  3.                         $spool = $transport->getSpool();
  4.                         if ($spool instanceof \Swift_MemorySpool) {
  5.                             try {
  6.                                 $spool->flushQueue($this->container->get(sprintf('swiftmailer.mailer.%s.transport.real', $name)));
  7.                             } catch (\Swift_TransportException $exception) {
  8.                                 if (null !== $this->logger) {
  9.                                     $this->logger->error(sprintf('Exception occurred while flushing email queue: %s', $exception->getMessage()));
  10.                                 }
  11.                             }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php -> onTerminate (line 126)
  1.         $this->called = true;
  2.         $this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
  4.         $e = $this->stopwatch->start($this->name, 'event_listener');
  6.         ($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
  8.         if ($e->isStarted()) {
  9.             $e->stop();
  10.         }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> __invoke (line 264)
  1.     {
  2.         foreach ($listeners as $listener) {
  3.             if ($event->isPropagationStopped()) {
  4.                 break;
  5.             }
  6.             $listener($event, $eventName, $this);
  7.         }
  8.     }
  10.     /**
  11.      * Sorts the internal list of listeners for the given event by priority.
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> doDispatch (line 239)
  1.      * @param object     $event     The event object to pass to the event handlers/listeners
  2.      */
  3.     protected function callListeners(iterable $listeners, string $eventName, $event)
  4.     {
  5.         if ($event instanceof Event) {
  6.             $this->doDispatch($listeners, $eventName, $event);
  8.             return;
  9.         }
  11.         $stoppable = $event instanceof ContractsEvent || $event instanceof StoppableEventInterface;
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php -> callListeners (line 73)
  1.         } else {
  2.             $listeners = $this->getListeners($eventName);
  3.         }
  5.         if ($listeners) {
  6.             $this->callListeners($listeners, $eventName, $event);
  7.         }
  9.         return $event;
  10.     }
in /var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php -> dispatch (line 168)
  1.         try {
  2.             $this->beforeDispatch($eventName, $event);
  3.             try {
  4.                 $e = $this->stopwatch->start($eventName, 'section');
  5.                 try {
  6.                     $this->dispatcher->dispatch($event, $eventName);
  7.                 } finally {
  8.                     if ($e->isStarted()) {
  9.                         $e->stop();
  10.                     }
  11.                 }
in /var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php -> dispatch (line 100)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function terminate(Request $request, Response $response)
  5.     {
  6.         $this->dispatcher->dispatch(new TerminateEvent($this, $request, $response), KernelEvents::TERMINATE);
  7.     }
  9.     /**
  10.      * @internal
  11.      */
in /var/vhost/fasa/web/vendor/symfony/http-kernel/Kernel.php -> terminate (line 166)
  1.         if (false === $this->booted) {
  2.             return;
  3.         }
  5.         if ($this->getHttpKernel() instanceof TerminableInterface) {
  6.             $this->getHttpKernel()->terminate($request, $response);
  7.         }
  8.     }
  10.     /**
  11.      * {@inheritdoc}
Kernel->terminate() in /var/vhost/fasa/web/public/index.php (line 27)
  2. $kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
  3. $request = Request::createFromGlobals();
  4. $response = $kernel->handle($request);
  5. $response->send();
  6. $kernel->terminate($request, $response);

Stack Traces 2

[2/2] RuntimeException 

RuntimeException:
Failed to start the session because headers have already been sent by "/var/vhost/fasa/web/vendor/symfony/http-foundation/Response.php" at line 368.

  at /var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:152
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (/var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:323)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag()
     (/var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php:251)
  at Symfony\Component\HttpFoundation\Session\Session->getBag()
     (/var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php:273)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (/var/vhost/fasa/web/vendor/symfony/http-foundation/Session/Session.php:65)
  at Symfony\Component\HttpFoundation\Session\Session->has()
     (/var/vhost/fasa/web/src/EventListener/RequestListener.php:32)
  at App\EventListener\RequestListener->onKernelController()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php:126)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:264)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:239)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:73)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:168)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php:146)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php:80)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/EventListener/ErrorListener.php:60)
  at Symfony\Component\HttpKernel\EventListener\ErrorListener->onKernelException()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php:126)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:264)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:239)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:73)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:168)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php:219)
  at Symfony\Component\HttpKernel\HttpKernel->handleThrowable()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php:112)
  at Symfony\Component\HttpKernel\HttpKernel->terminateWithException()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/EventListener/DebugHandlersListener.php:129)
  at Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::Symfony\Component\HttpKernel\EventListener\{closure}()
     (/var/vhost/fasa/web/vendor/symfony/error-handler/ErrorHandler.php:601)
  at Symfony\Component\ErrorHandler\ErrorHandler->handleException()

[1/2] InvalidArgumentException 

InvalidArgumentException:
The Swiftmailer URL "gmail://a:blocalhost" is not valid.

  at /var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerTransportFactory.php:99
  at Symfony\Bundle\SwiftmailerBundle\DependencyInjection\SwiftmailerTransportFactory::resolveOptions()
     (/var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerTransportFactory.php:30)
  at Symfony\Bundle\SwiftmailerBundle\DependencyInjection\SwiftmailerTransportFactory::createTransport()
     (/var/vhost/fasa/web/var/cache/dev/ContainerZm6s6AM/srcApp_KernelDevDebugContainer.php:4988)
  at ContainerZm6s6AM\srcApp_KernelDevDebugContainer->getSwiftmailer_Mailer_Default_Transport_RealService()
     (/var/vhost/fasa/web/vendor/symfony/dependency-injection/Container.php:257)
  at Symfony\Component\DependencyInjection\Container->make()
     (/var/vhost/fasa/web/vendor/symfony/dependency-injection/Container.php:231)
  at Symfony\Component\DependencyInjection\Container->get()
     (/var/vhost/fasa/web/vendor/symfony/swiftmailer-bundle/EventListener/EmailSenderListener.php:61)
  at Symfony\Bundle\SwiftmailerBundle\EventListener\EmailSenderListener->onTerminate()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/WrappedListener.php:126)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:264)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:239)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/EventDispatcher.php:73)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:168)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/HttpKernel.php:100)
  at Symfony\Component\HttpKernel\HttpKernel->terminate()
     (/var/vhost/fasa/web/vendor/symfony/http-kernel/Kernel.php:166)
  at Symfony\Component\HttpKernel\Kernel->terminate()
     (/var/vhost/fasa/web/public/index.php:27)