Fatal error: Uncaught Error: Class "Symfony\Component\Runtime\SymfonyRuntime" not found in /opt/drupal/web/core/lib/Drupal/Core/Runtime/DrupalRuntime.php:16 Stack trace: #0 /opt/drupal/vendor/composer/ClassLoader.php(576): include() #1 /opt/drupal/vendor/composer/ClassLoader.php(427): {closure:Composer\Autoload\ClassLoader::initializeIncludeClosure():575}('/opt/drupal/ven...') #2 /opt/drupal/vendor/autoload_runtime.php(19): Composer\Autoload\ClassLoader->loadClass('Drupal\\Core\\Run...') #3 /opt/drupal/web/autoload_runtime.php(22): require('/opt/drupal/ven...') #4 /opt/drupal/web/index.php(13): require_once('/opt/drupal/web...') #5 {main} thrown in /opt/drupal/web/core/lib/Drupal/Core/Runtime/DrupalRuntime.php on line 16