Additional uncaught exception thrown while handling exception.

Original

Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT 1 AS "expression" FROM "key_value" "key_value" WHERE ("name" = :db_condition_placeholder_0) AND ("collection" = :db_condition_placeholder_1); Array ( [:db_condition_placeholder_0] => twig_extension_hash_prefix [:db_condition_placeholder_1] => state ) in Drupal\Core\KeyValueStore\DatabaseStorage->doSet() (line 136 of /var/www/html/portail/core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php).

Drupal\Core\KeyValueStore\DatabaseStorage->doSet() (Line: 149)
Drupal\Core\KeyValueStore\DatabaseStorage->set() (Line: 84)
Drupal\Core\State\State->set() (Line: 91)
Drupal\Core\Template\TwigEnvironment->__construct()
ReflectionClass->newInstanceArgs() (Line: 1142)
Symfony\Component\DependencyInjection\ContainerBuilder->createService() (Line: 618)
Symfony\Component\DependencyInjection\ContainerBuilder->doGet() (Line: 558)
Symfony\Component\DependencyInjection\ContainerBuilder->get() (Line: 198)
Drupal::service() (Line: 47)
twig_render_template() (Line: 384)
Drupal\Core\Theme\ThemeManager->render() (Line: 422)
Drupal\Core\Render\Renderer->doRender() (Line: 201)
Drupal\Core\Render\Renderer->render() (Line: 145)
Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 564)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 146)
Drupal\Core\Render\Renderer->renderRoot() (Line: 66)
Drupal\Core\Render\BareHtmlPageRenderer->renderBarePage() (Line: 76)
Drupal\Core\ProxyClass\Render\BareHtmlPageRenderer->renderBarePage() (Line: 1058)
install_display_output() (Line: 161)
install_drupal() (Line: 48)

Additional

LogicException: A stray renderRoot() invocation is causing bubbling of attached assets to break. in Drupal\Core\Render\Renderer->renderRoot() (line 139 of /var/www/html/portail/core/lib/Drupal/Core/Render/Renderer.php).

Drupal\Core\Render\Renderer->renderRoot() (Line: 66)
Drupal\Core\Render\BareHtmlPageRenderer->renderBarePage() (Line: 76)
Drupal\Core\ProxyClass\Render\BareHtmlPageRenderer->renderBarePage() (Line: 1058)
install_display_output() (Line: 271)
_drupal_log_error() (Line: 83)
_drupal_error_handler_real() (Line: 346)
_drupal_error_handler()
trigger_error() (Line: 20)
Drupal\Core\StringTranslation\TranslatableMarkup->__toString() (Line: 562)
Drupal\Core\Template\TwigExtension->renderVar() (Line: 77)
__TwigTemplate_9ef430df10f9c0f9740f2c93aa9fbc9e->doDisplay() (Line: 405)
Twig\Template->displayWithErrorHandling() (Line: 378)
Twig\Template->display() (Line: 390)
Twig\Template->render() (Line: 55)
twig_render_template() (Line: 384)
Drupal\Core\Theme\ThemeManager->render() (Line: 422)
Drupal\Core\Render\Renderer->doRender() (Line: 201)
Drupal\Core\Render\Renderer->render() (Line: 145)
Drupal\Core\Render\Renderer->Drupal\Core\Render\{closure}() (Line: 564)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 146)
Drupal\Core\Render\Renderer->renderRoot() (Line: 66)
Drupal\Core\Render\BareHtmlPageRenderer->renderBarePage() (Line: 76)
Drupal\Core\ProxyClass\Render\BareHtmlPageRenderer->renderBarePage() (Line: 1058)
install_display_output() (Line: 271)
_drupal_log_error() (Line: 364)
_drupal_exception_handler()