Fatal error: Uncaught Error: Class "Drupal\Composer\Plugin\Scaffold\Operations\AbstractOperation" not found in /home/aipnbsfo/public_html/vendor/drupal/core-composer-scaffold/Operations/AppendOp.php:14 Stack trace: #0 {main} thrown in /home/aipnbsfo/public_html/vendor/drupal/core-composer-scaffold/Operations/AppendOp.php on line 14