Fatal error: Uncaught Error: Interface "Symfony\Component\HttpKernel\HttpKernelInterface" not found in /opt/drupal/web/core/lib/Drupal/Core/DrupalKernelInterface.php:15 Stack trace: #0 /opt/drupal/vendor/composer/ClassLoader.php(576): include() #1 /opt/drupal/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/opt/drupal/ven...') #2 /opt/drupal/web/core/lib/Drupal/Core/DrupalKernel.php(48): Composer\Autoload\ClassLoader->loadClass('Drupal\\Core\\Dru...') #3 /opt/drupal/vendor/composer/ClassLoader.php(576): include('/opt/drupal/web...') #4 /opt/drupal/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/opt/drupal/ven...') #5 /opt/drupal/web/index.php(16): Composer\Autoload\ClassLoader->loadClass('Drupal\\Core\\Dru...') #6 {main} thrown in /opt/drupal/web/core/lib/Drupal/Core/DrupalKernelInterface.php on line 15