Fatal error: Uncaught Error: Class 'Drupal\Core\Plugin\DefaultPluginManager' not found in /var/www/html/tmp/contrib/field_permissions/src/Plugin/FieldPermissionType/Manager.php:17 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/field_permissions/src/Plugin/FieldPermissionType/Manager.php on line 17