< Failed to start the session because headers have already been sent by "/mnt/web620/b0/44/5921644/htdocs/index.php" at line 17. (500 Whoops, looks like something went wrong.)

RuntimeException RuntimeException

HTTP 500 Whoops, looks like something went wrong.

Failed to start the session because headers have already been sent by "/mnt/web620/b0/44/5921644/htdocs/index.php" at line 17.

Exceptions 2

RuntimeException

in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Storage/NativeStorage.php (line 454)
  1.         if ($this->isActive()) {
  2.             throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3.         }
  5.         if (ini_get('session.use_cookies') && headers_sent($file, $line)) {
  6.             throw new \RuntimeException(
  7.                 sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
  8.             );
  9.         }
  11.         if (!session_start()) {
NativeStorage->start() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Storage/JoomlaStorage.php (line 313)
  1.                 $this->setId($session_clean);
  2.                 $cookie->set($session_name, '', ['expires' => time() - 3600 ]);
  3.             }
  4.         }
  6.         parent::start();
  8.         // Try loading data from the session
  9.         if (!empty($_SESSION['joomla'])) {
  10.             $this->data = unserialize(base64_decode($_SESSION['joomla']));
  11.         }
in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php -> start (line 396)
  1.     {
  2.         if ($this->isStarted()) {
  3.             return;
  4.         }
  6.         $this->store->start();
  8.         $this->setState(SessionState::ACTIVE);
  10.         // Initialise the session
  11.         $this->setCounter();
in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php -> start (line 327)
  1.      * @since   1.0
  2.      */
  3.     public function has($name)
  4.     {
  5.         if (!$this->isActive()) {
  6.             $this->start();
  7.         }
  9.         return $this->store->has($name);
  10.     }
Session->has() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Session.php (line 194)
  2.                 $name = $args[2] . '.' . $name;
  3.             }
  4.         }
  6.         if (parent::has($name)) {
  7.             // Parent is used because of b/c, can be changed in Joomla 6
  8.             return parent::get($name, $default);
  9.         }
  11.         /*
Session->get() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php (line 611)
  1.      */
  2.     public function getMessageQueue($clear = false)
  3.     {
  4.         // For empty queue, if messages exists in the session, enqueue them.
  5.         if (!\count($this->messageQueue)) {
  6.             $sessionQueue = $this->getSession()->get('application.queue', []);
  8.             if ($sessionQueue) {
  9.                 $this->messageQueue = $sessionQueue;
  10.                 $this->getSession()->set('application.queue', []);
  11.             }
CMSApplication->getMessageQueue() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php (line 253)
  1.             'message' => $inputFilter->clean($msg, 'html'),
  2.             'type'    => $inputFilter->clean(strtolower($type), 'cmd'),
  3.         ];
  5.         // Get the messages of the session and add the new message if it is not already in the queue.
  6.         if (!\in_array($message, $this->getMessageQueue())) {
  7.             // Enqueue the message.
  8.             $this->messageQueue[] = $message;
  9.         }
  10.     }
CMSApplication->enqueueMessage() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php (line 526)
  1.                         throw new \InvalidArgumentException(Text::sprintf('JERROR_COULD_NOT_FIND_TEMPLATE', $original_tmpl));
  2.                     }
  3.                 }
  4.             }
  5.         } elseif (!is_file(JPATH_THEMES . '/' . $template->template . '/index.php')) {
  6.             $this->enqueueMessage(Text::_('JERROR_ALERTNOTEMPLATE'), 'error');
  8.             // Try to find data for 'cassiopeia' template
  9.             $original_tmpl = $template->template;
  11.             foreach ($templates as $tmpl) {
SiteApplication->getTemplate() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Error/Renderer/HtmlRenderer.php (line 50)
  1.     public function render(\Throwable $error): string
  2.     {
  3.         $app = Factory::getApplication();
  5.         // Get the current template from the application
  6.         $template = $app->getTemplate(true);
  8.         // Push the error object into the document
  9.         $this->getDocument()->setError($error);
  11.         // Add registry file for the template asset
HtmlRenderer->render() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Exception/ExceptionHandler.php (line 139)
  1.                     'subject'  => $app,
  2.                     'document' => $renderer->getDocument(),
  3.                 ])
  4.             );
  6.             $data = $renderer->render($error);
  8.             // If nothing was rendered, just use the message from the Exception
  9.             if (empty($data)) {
  10.                 $data = $error->getMessage();
  11.             }
ExceptionHandler::render() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Exception/ExceptionHandler.php (line 73)
  1.      * @since   3.10.0
  2.      */
  3.     public static function handleException(\Throwable $error)
  4.     {
  5.         static::logException($error);
  6.         static::render($error);
  7.     }
  9.     /**
  10.      * Render the error page based on an exception.
  11.      *
ExceptionHandler::handleException() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php (line 334)
  1.             );
  3.             // Trigger the onError event.
  4.             $this->dispatchEvent('onError', $event);
  6.             ExceptionHandler::handleException($event->getError());
  7.         }
  9.         // Trigger the onBeforeRespond event.
  10.         $this->dispatchEvent(
  11.             'onBeforeRespond',
CMSApplication->execute() in /mnt/web620/b0/44/5921644/htdocs/includes/app.php (line 58)
  2. // Set the application as global app
  3. \Joomla\CMS\Factory::$application = $app;
  5. // Execute the application.
  6. $app->execute();
require_once('/mnt/web620/b0/44/5921644/htdocs/includes/app.php') in /mnt/web620/b0/44/5921644/htdocs/index.php (line 48)
  1.  * define() is used rather than "const" to not error for PHP 5.2 and lower
  2.  */
  3. define('_JEXEC', 1);
  5. // Run the application - All executable code should be triggered through this file
  6. require_once dirname(__FILE__) . '/includes/app.php';

RuntimeException

Failed to start the session because headers have already been sent by "/mnt/web620/b0/44/5921644/htdocs/index.php" at line 17.

in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Storage/NativeStorage.php (line 454)
  1.         if ($this->isActive()) {
  2.             throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3.         }
  5.         if (ini_get('session.use_cookies') && headers_sent($file, $line)) {
  6.             throw new \RuntimeException(
  7.                 sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
  8.             );
  9.         }
  11.         if (!session_start()) {
NativeStorage->start() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Storage/JoomlaStorage.php (line 313)
  1.                 $this->setId($session_clean);
  2.                 $cookie->set($session_name, '', ['expires' => time() - 3600 ]);
  3.             }
  4.         }
  6.         parent::start();
  8.         // Try loading data from the session
  9.         if (!empty($_SESSION['joomla'])) {
  10.             $this->data = unserialize(base64_decode($_SESSION['joomla']));
  11.         }
in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php -> start (line 396)
  1.     {
  2.         if ($this->isStarted()) {
  3.             return;
  4.         }
  6.         $this->store->start();
  8.         $this->setState(SessionState::ACTIVE);
  10.         // Initialise the session
  11.         $this->setCounter();
in /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php -> start (line 327)
  1.      * @since   1.0
  2.      */
  3.     public function has($name)
  4.     {
  5.         if (!$this->isActive()) {
  6.             $this->start();
  7.         }
  9.         return $this->store->has($name);
  10.     }
Session->has() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Session.php (line 194)
  2.                 $name = $args[2] . '.' . $name;
  3.             }
  4.         }
  6.         if (parent::has($name)) {
  7.             // Parent is used because of b/c, can be changed in Joomla 6
  8.             return parent::get($name, $default);
  9.         }
  11.         /*
Session->get() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Factory.php (line 372)
  1.                 __CLASS__
  2.             ),
  3.             E_USER_DEPRECATED
  4.         );
  6.         $instance = self::getApplication()->getSession()->get('user');
  8.         if (\is_null($id)) {
  9.             if (!($instance instanceof User)) {
  10.                 $instance = User::getInstance();
  11.             }
Factory::getUser() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php (line 565)
  1.      *
  2.      * @since   3.2
  3.      */
  4.     protected function initialiseApp($options = [])
  5.     {
  6.         $user = Factory::getUser();
  8.         // If the user is a guest we populate it with the guest user group.
  9.         if ($user->guest) {
  10.             $guestUsergroup = ComponentHelper::getParams('com_users')->get('guest_usergroup', 1);
  11.             $user->groups   = [$guestUsergroup];
SiteApplication->initialiseApp() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php (line 237)
  1.      * @since   3.2
  2.      */
  3.     protected function doExecute()
  4.     {
  5.         // Initialise the application
  6.         $this->initialiseApp();
  8.         // Mark afterInitialise in the profiler.
  9.         JDEBUG ? $this->profiler->mark('afterInitialise') : null;
  11.         // Route the application
SiteApplication->doExecute() in /mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php (line 304)
  1.             $this->sanityCheckSystemVariables();
  2.             $this->setupLogging();
  3.             $this->createExtensionNamespaceMap();
  5.             // Perform application routines.
  6.             $this->doExecute();
  8.             // If we have an application document object, render it.
  9.             if ($this->document instanceof \Joomla\CMS\Document\Document) {
  10.                 // Render the application output.
  11.                 $this->render();
CMSApplication->execute() in /mnt/web620/b0/44/5921644/htdocs/includes/app.php (line 58)
  2. // Set the application as global app
  3. \Joomla\CMS\Factory::$application = $app;
  5. // Execute the application.
  6. $app->execute();
require_once('/mnt/web620/b0/44/5921644/htdocs/includes/app.php') in /mnt/web620/b0/44/5921644/htdocs/index.php (line 48)
  1.  * define() is used rather than "const" to not error for PHP 5.2 and lower
  2.  */
  3. define('_JEXEC', 1);
  5. // Run the application - All executable code should be triggered through this file
  6. require_once dirname(__FILE__) . '/includes/app.php';

Stack Traces 2

[2/2] RuntimeException 
RuntimeException:
Failed to start the session because headers have already been sent by "/mnt/web620/b0/44/5921644/htdocs/index.php" at line 17.

  at /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:454
  at Joomla\Session\Storage\NativeStorage->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Storage/JoomlaStorage.php:313)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php:396)
  at Joomla\Session\Session->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php:327)
  at Joomla\Session\Session->has()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Session.php:194)
  at Joomla\CMS\Session\Session->get()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php:611)
  at Joomla\CMS\Application\CMSApplication->getMessageQueue()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php:253)
  at Joomla\CMS\Application\CMSApplication->enqueueMessage()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php:526)
  at Joomla\CMS\Application\SiteApplication->getTemplate()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Error/Renderer/HtmlRenderer.php:50)
  at Joomla\CMS\Error\Renderer\HtmlRenderer->render()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Exception/ExceptionHandler.php:139)
  at Joomla\CMS\Exception\ExceptionHandler::render()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Exception/ExceptionHandler.php:73)
  at Joomla\CMS\Exception\ExceptionHandler::handleException()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php:334)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/mnt/web620/b0/44/5921644/htdocs/includes/app.php:58)
  at require_once('/mnt/web620/b0/44/5921644/htdocs/includes/app.php')
     (/mnt/web620/b0/44/5921644/htdocs/index.php:48)
[1/2] RuntimeException 
RuntimeException:
Failed to start the session because headers have already been sent by "/mnt/web620/b0/44/5921644/htdocs/index.php" at line 17.

  at /mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:454
  at Joomla\Session\Storage\NativeStorage->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Storage/JoomlaStorage.php:313)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php:396)
  at Joomla\Session\Session->start()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/vendor/joomla/session/src/Session.php:327)
  at Joomla\Session\Session->has()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Session/Session.php:194)
  at Joomla\CMS\Session\Session->get()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Factory.php:372)
  at Joomla\CMS\Factory::getUser()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php:565)
  at Joomla\CMS\Application\SiteApplication->initialiseApp()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/SiteApplication.php:237)
  at Joomla\CMS\Application\SiteApplication->doExecute()
     (/mnt/web620/b0/44/5921644/htdocs/libraries/src/Application/CMSApplication.php:304)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/mnt/web620/b0/44/5921644/htdocs/includes/app.php:58)
  at require_once('/mnt/web620/b0/44/5921644/htdocs/includes/app.php')
     (/mnt/web620/b0/44/5921644/htdocs/index.php:48)