Warning: Class "Drupal\Core\Http\KernelEvent" not found in /opt/drupal/web/core/includes/bootstrap.inc on line 135

Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Request" not found in /opt/drupal/web/core/includes/bootstrap.inc:142 Stack trace: #0 /opt/drupal/web/vendor/composer/autoload_real.php(45): require() #1 /opt/drupal/web/vendor/composer/autoload_real.php(49): {closure}('2f69d3914119f04...', '/opt/drupal/web...') #2 /opt/drupal/web/vendor/autoload.php(25): ComposerAutoloaderInit5f7a9f3b097b0ab4ae9a4474b65dc5d5::getLoader() #3 /opt/drupal/web/autoload.php(16): require('/opt/drupal/web...') #4 /opt/drupal/web/index.php(14): require_once('/opt/drupal/web...') #5 {main} thrown in /opt/drupal/web/core/includes/bootstrap.inc on line 142