Fatal error: Uncaught Error: Class 'Drupal\Composer\Plugin\Scaffold\Operations\AbstractOperation' not found in /home/discovergreece/public_html/vendor/drupal/core-composer-scaffold/Operations/ReplaceOp.php:15 Stack trace: #0 {main} thrown in /home/discovergreece/public_html/vendor/drupal/core-composer-scaffold/Operations/ReplaceOp.php on line 15