Fatal error: Uncaught Error: Class 'Drupal\Core\Plugin\PluginBase' not found in /var/www/html/tmp/contrib/field_permissions/src/Plugin/FieldPermissionType/Base.php:15 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/field_permissions/src/Plugin/FieldPermissionType/Base.php on line 15