Fatal error: Uncaught Error: Class "Drupal\Component\Utility\NestedArray" not found in /opt/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php:209 Stack trace: #0 /opt/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(169): Drupal\Core\Config\ConfigFactory->loadOverrides(Array) #1 /opt/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(104): Drupal\Core\Config\ConfigFactory->doLoadMultiple(Array, true) #2 /opt/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(89): Drupal\Core\Config\ConfigFactory->doGet('system.logging') #3 /opt/drupal/web/core/lib/Drupal.php(421): Drupal\Core\Config\ConfigFactory->get('system.logging') #4 /opt/drupal/web/core/includes/errors.inc(323): Drupal::config('system.logging') #5 /opt/drupal/web/core/includes/errors.inc(123): _drupal_get_error_level() #6 /opt/drupal/web/core/includes/bootstrap.inc(385): error_displayable() #7 /opt/drupal/web/core/includes/bootstrap.inc(369): _drupal_exception_handler_additional(Object(Error), Object(Error)) #8 [internal function]: _drupal_exception_handler(Object(Error)) #9 {main} thrown in /opt/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php on line 209