Additional uncaught exception thrown while handling exception.

Original

Error: Class "Symfony\Component\HttpFoundation\Session\Storage\MetadataBag" not found in Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage->setMetadataBag() (line 200 of /home/detry/domains/myaubel.be/public_html/vendor/symfony/http-foundation/Session/Storage/MockArraySessionStorage.php).

Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage->setMetadataBag() (Line: 68)
Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage->__construct() (Line: 1774)
Drupal\Core\DrupalKernel->initializeEphemeralSession() (Line: 609)
Drupal\Core\DrupalKernel->preHandle() (Line: 46)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 191)
Drupal\page_cache\StackMiddleware\PageCache->fetch() (Line: 128)
Drupal\page_cache\StackMiddleware\PageCache->lookup() (Line: 82)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 263)
Drupal\shield\ShieldMiddleware->bypass() (Line: 130)
Drupal\shield\ShieldMiddleware->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Additional

Error: Class "Drupal\Core\Session\AccountProxy" not found in Drupal\Component\DependencyInjection\Container->createService() (line 261 of /home/detry/domains/myaubel.be/public_html/core/lib/Drupal/Component/DependencyInjection/Container.php).

Drupal\Component\DependencyInjection\Container->createService() (Line: 179)
Drupal\Component\DependencyInjection\Container->get() (Line: 438)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters() (Line: 239)
Drupal\Component\DependencyInjection\Container->createService() (Line: 179)
Drupal\Component\DependencyInjection\Container->get() (Line: 676)
Drupal::logger() (Line: 175)
_drupal_log_error() (Line: 184)
_drupal_exception_handler()