Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1. (500 Whoops, looks like something went wrong.)

Exceptions 2

RuntimeException

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php (line 473)

throw new \RuntimeException('Failed to start the session: already started by PHP.');
}
if (ini_get('session.use_cookies') && headers_sent($file, $line))
{
throw new \RuntimeException(
sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
);
}
if (!session_start())

NativeStorage->start() in /data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php (line 295)

$this->setId($session_clean);
$cookie->set($session_name, '', time() - 3600);
}
}
parent::start();
// Try loading data from the session
if (isset($_SESSION['joomla']) && !empty($_SESSION['joomla'])) {
$this->data = unserialize(base64_decode($_SESSION['joomla']));
}

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php -> start (line 406)

if ($this->isStarted())
{
return;
}
$this->store->start();
$this->setState(SessionState::ACTIVE);
// Initialise the session
$this->setCounter();

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php -> start (line 333)

*/
public function has($name)
{
if (!$this->isActive())
{
$this->start();
}
return $this->store->has($name);
}

Session->has() in /data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php (line 191)

$name = $args[2] . '.' . $name;
}
}
if (parent::has($name)) {
// Parent is used because of b/c, can be changed in Joomla 5
return parent::get($name, $default);
}
/*

Session->get() in /data/www/siebnooteboom.nl/www/libraries/src/Factory.php (line 334)

__CLASS__
),
E_USER_DEPRECATED
);
$instance = self::getApplication()->getSession()->get('user');
if (\is_null($id)) {
if (!($instance instanceof User)) {
$instance = User::getInstance();
}

Factory::getUser() in /data/www/siebnooteboom.nl/www/libraries/src/Document/Renderer/Html/ModulesRenderer.php (line 45)

{
$renderer = $this->_doc->loadRenderer('module');
$buffer = '';
$app = Factory::getApplication();
$user = Factory::getUser();
$frontediting = ($app->isClient('site') && $app->get('frontediting', 1) && !$user->guest);
$menusEditing = ($app->get('frontediting', 1) == 2) && $user->authorise('core.edit', 'com_menus');
foreach (ModuleHelper::getModules($position) as $mod) {
$moduleHtml = $renderer->render($mod, $params, $content);

ModulesRenderer->render() in /data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php (line 565)

$cbuffer[$hash] = $tmpdata;
$cache->store($cbuffer, 'cbuffer_' . $type);
} else {
$this->setBuffer($renderer->render($name, $attribs, null), $type, $name, $title);
}
return parent::$_buffer[$type][$name][$title];
}

HtmlDocument->getBuffer() in /data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php (line 848)

$replace = [];
$with = [];
foreach ($this->_template_tags as $jdoc => $args) {
$replace[] = $jdoc;
$with[] = $this->getBuffer($args['type'], $args['name'], $args['attribs']);
}
return str_replace($replace, $with, $this->_template);
}
}

HtmlDocument->_renderTemplate() in /data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php (line 633)

if (\array_key_exists('csp_nonce', $params) && $params['csp_nonce'] !== null) {
$this->cspNonce = $params['csp_nonce'];
}
$data = $this->_renderTemplate();
parent::render($caching, $params);
return $data;
}

HtmlDocument->render() in /data/www/siebnooteboom.nl/www/libraries/src/Document/ErrorDocument.php (line 139)

$this->debug = $params['debug'] ?? false;
$this->error = $this->_error;
$params['file'] = 'error.php';
return parent::render($cache, $params);
}
/**
* Render the backtrace
*

ErrorDocument->render() in /data/www/siebnooteboom.nl/www/libraries/src/Error/Renderer/HtmlRenderer.php (line 78)

'template' => $template->template,
'directory' => JPATH_THEMES,
'debug' => JDEBUG,
'csp_nonce' => $app->get('csp_nonce'),
'templateInherits' => $template->parent,
'params' => $template->params,
]
);
}
}

HtmlRenderer->render() in /data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php (line 121)

// Reset the document object in the factory, this gives us a clean slate and lets everything render properly
Factory::$document = $renderer->getDocument();
Factory::getApplication()->loadDocument(Factory::$document);
$data = $renderer->render($error);
// If nothing was rendered, just use the message from the Exception
if (empty($data)) {
$data = $error->getMessage();
}

ExceptionHandler::render() in /data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php (line 72)

* @since 3.10.0
*/
public static function handleException(\Throwable $error)
{
static::logException($error);
static::render($error);
}
/**
* Render the error page based on an exception.
*

ExceptionHandler::handleException() in /data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php (line 323)

);
// Trigger the onError event.
$this->triggerEvent('onError', $event);
ExceptionHandler::handleException($event->getError());
}
// Trigger the onBeforeRespond event.
$this->getDispatcher()->dispatch('onBeforeRespond');

CMSApplication->execute() in /data/www/siebnooteboom.nl/www/includes/app.php (line 61)

// Set the application as global app
\Joomla\CMS\Factory::$application = $app;
// Execute the application.
$app->execute();

require_once('/data/www/siebnooteboom.nl/www/includes/app.php') in /data/www/siebnooteboom.nl/www/index.php (line 167)

* define() is used rather than "const" to not error for PHP 5.2 and lower
*/
define('_JEXEC', 1);
// Run the application - All executable code should be triggered through this file
require_once dirname(__FILE__) . '/includes/app.php';

RuntimeException

Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1.

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php (line 473)

throw new \RuntimeException('Failed to start the session: already started by PHP.');
}
if (ini_get('session.use_cookies') && headers_sent($file, $line))
{
throw new \RuntimeException(
sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line)
);
}
if (!session_start())

NativeStorage->start() in /data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php (line 295)

$this->setId($session_clean);
$cookie->set($session_name, '', time() - 3600);
}
}
parent::start();
// Try loading data from the session
if (isset($_SESSION['joomla']) && !empty($_SESSION['joomla'])) {
$this->data = unserialize(base64_decode($_SESSION['joomla']));
}

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php -> start (line 406)

if ($this->isStarted())
{
return;
}
$this->store->start();
$this->setState(SessionState::ACTIVE);
// Initialise the session
$this->setCounter();

in /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php -> start (line 333)

*/
public function has($name)
{
if (!$this->isActive())
{
$this->start();
}
return $this->store->has($name);
}

Session->has() in /data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php (line 191)

$name = $args[2] . '.' . $name;
}
}
if (parent::has($name)) {
// Parent is used because of b/c, can be changed in Joomla 5
return parent::get($name, $default);
}
/*

Session->get() in /data/www/siebnooteboom.nl/www/libraries/src/Factory.php (line 334)

__CLASS__
),
E_USER_DEPRECATED
);
$instance = self::getApplication()->getSession()->get('user');
if (\is_null($id)) {
if (!($instance instanceof User)) {
$instance = User::getInstance();
}

Factory::getUser() in /data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php (line 560)

*
* @since 3.2
*/
protected function initialiseApp($options = [])
{
$user = Factory::getUser();
// If the user is a guest we populate it with the guest user group.
if ($user->guest) {
$guestUsergroup = ComponentHelper::getParams('com_users')->get('guest_usergroup', 1);
$user->groups = [$guestUsergroup];

SiteApplication->initialiseApp() in /data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php (line 226)

* @since 3.2
*/
protected function doExecute()
{
// Initialise the application
$this->initialiseApp();
// Mark afterInitialise in the profiler.
JDEBUG ? $this->profiler->mark('afterInitialise') : null;
// Route the application

SiteApplication->doExecute() in /data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php (line 294)

$this->sanityCheckSystemVariables();
$this->setupLogging();
$this->createExtensionNamespaceMap();
// Perform application routines.
$this->doExecute();
// If we have an application document object, render it.
if ($this->document instanceof \Joomla\CMS\Document\Document) {
// Render the application output.
$this->render();

CMSApplication->execute() in /data/www/siebnooteboom.nl/www/includes/app.php (line 61)

// Set the application as global app
\Joomla\CMS\Factory::$application = $app;
// Execute the application.
$app->execute();

require_once('/data/www/siebnooteboom.nl/www/includes/app.php') in /data/www/siebnooteboom.nl/www/index.php (line 167)

* define() is used rather than "const" to not error for PHP 5.2 and lower
*/
define('_JEXEC', 1);
// Run the application - All executable code should be triggered through this file
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 "/data/www/siebnooteboom.nl/www/index.php" at line 1. at /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:473 at Joomla\Session\Storage\NativeStorage->start() (/data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php:295) at Joomla\CMS\Session\Storage\JoomlaStorage->start() (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:406) at Joomla\Session\Session->start() (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:333) at Joomla\Session\Session->has() (/data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php:191) at Joomla\CMS\Session\Session->get() (/data/www/siebnooteboom.nl/www/libraries/src/Factory.php:334) at Joomla\CMS\Factory::getUser() (/data/www/siebnooteboom.nl/www/libraries/src/Document/Renderer/Html/ModulesRenderer.php:45) at Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render() (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:565) at Joomla\CMS\Document\HtmlDocument->getBuffer() (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:848) at Joomla\CMS\Document\HtmlDocument->_renderTemplate() (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:633) at Joomla\CMS\Document\HtmlDocument->render() (/data/www/siebnooteboom.nl/www/libraries/src/Document/ErrorDocument.php:139) at Joomla\CMS\Document\ErrorDocument->render() (/data/www/siebnooteboom.nl/www/libraries/src/Error/Renderer/HtmlRenderer.php:78) at Joomla\CMS\Error\Renderer\HtmlRenderer->render() (/data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php:121) at Joomla\CMS\Exception\ExceptionHandler::render() (/data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php:72) at Joomla\CMS\Exception\ExceptionHandler::handleException() (/data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php:323) at Joomla\CMS\Application\CMSApplication->execute() (/data/www/siebnooteboom.nl/www/includes/app.php:61) at require_once('/data/www/siebnooteboom.nl/www/includes/app.php') (/data/www/siebnooteboom.nl/www/index.php:167)

[2/2] RuntimeException

RuntimeException:
Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1.

  at /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:473
  at Joomla\Session\Storage\NativeStorage->start()
     (/data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php:295)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:406)
  at Joomla\Session\Session->start()
     (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:333)
  at Joomla\Session\Session->has()
     (/data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php:191)
  at Joomla\CMS\Session\Session->get()
     (/data/www/siebnooteboom.nl/www/libraries/src/Factory.php:334)
  at Joomla\CMS\Factory::getUser()
     (/data/www/siebnooteboom.nl/www/libraries/src/Document/Renderer/Html/ModulesRenderer.php:45)
  at Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render()
     (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:565)
  at Joomla\CMS\Document\HtmlDocument->getBuffer()
     (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:848)
  at Joomla\CMS\Document\HtmlDocument->_renderTemplate()
     (/data/www/siebnooteboom.nl/www/libraries/src/Document/HtmlDocument.php:633)
  at Joomla\CMS\Document\HtmlDocument->render()
     (/data/www/siebnooteboom.nl/www/libraries/src/Document/ErrorDocument.php:139)
  at Joomla\CMS\Document\ErrorDocument->render()
     (/data/www/siebnooteboom.nl/www/libraries/src/Error/Renderer/HtmlRenderer.php:78)
  at Joomla\CMS\Error\Renderer\HtmlRenderer->render()
     (/data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php:121)
  at Joomla\CMS\Exception\ExceptionHandler::render()
     (/data/www/siebnooteboom.nl/www/libraries/src/Exception/ExceptionHandler.php:72)
  at Joomla\CMS\Exception\ExceptionHandler::handleException()
     (/data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php:323)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/data/www/siebnooteboom.nl/www/includes/app.php:61)
  at require_once('/data/www/siebnooteboom.nl/www/includes/app.php')
     (/data/www/siebnooteboom.nl/www/index.php:167)

[1/2] RuntimeException
RuntimeException: Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1. at /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:473 at Joomla\Session\Storage\NativeStorage->start() (/data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php:295) at Joomla\CMS\Session\Storage\JoomlaStorage->start() (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:406) at Joomla\Session\Session->start() (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:333) at Joomla\Session\Session->has() (/data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php:191) at Joomla\CMS\Session\Session->get() (/data/www/siebnooteboom.nl/www/libraries/src/Factory.php:334) at Joomla\CMS\Factory::getUser() (/data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php:560) at Joomla\CMS\Application\SiteApplication->initialiseApp() (/data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php:226) at Joomla\CMS\Application\SiteApplication->doExecute() (/data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php:294) at Joomla\CMS\Application\CMSApplication->execute() (/data/www/siebnooteboom.nl/www/includes/app.php:61) at require_once('/data/www/siebnooteboom.nl/www/includes/app.php') (/data/www/siebnooteboom.nl/www/index.php:167)

[1/2] RuntimeException

RuntimeException:
Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1.

  at /data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Storage/NativeStorage.php:473
  at Joomla\Session\Storage\NativeStorage->start()
     (/data/www/siebnooteboom.nl/www/libraries/src/Session/Storage/JoomlaStorage.php:295)
  at Joomla\CMS\Session\Storage\JoomlaStorage->start()
     (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:406)
  at Joomla\Session\Session->start()
     (/data/www/siebnooteboom.nl/www/libraries/vendor/joomla/session/src/Session.php:333)
  at Joomla\Session\Session->has()
     (/data/www/siebnooteboom.nl/www/libraries/src/Session/Session.php:191)
  at Joomla\CMS\Session\Session->get()
     (/data/www/siebnooteboom.nl/www/libraries/src/Factory.php:334)
  at Joomla\CMS\Factory::getUser()
     (/data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php:560)
  at Joomla\CMS\Application\SiteApplication->initialiseApp()
     (/data/www/siebnooteboom.nl/www/libraries/src/Application/SiteApplication.php:226)
  at Joomla\CMS\Application\SiteApplication->doExecute()
     (/data/www/siebnooteboom.nl/www/libraries/src/Application/CMSApplication.php:294)
  at Joomla\CMS\Application\CMSApplication->execute()
     (/data/www/siebnooteboom.nl/www/includes/app.php:61)
  at require_once('/data/www/siebnooteboom.nl/www/includes/app.php')
     (/data/www/siebnooteboom.nl/www/index.php:167)

RuntimeException RuntimeException

HTTP 500 Whoops, looks like something went wrong.

Failed to start the session because headers have already been sent by "/data/www/siebnooteboom.nl/www/index.php" at line 1.

Exceptions 2

RuntimeException

RuntimeException

Stack Traces 2