Fatal error: Uncaught Error: Class "Shopware\Elasticsearch\Admin\Indexer\AbstractAdminIndexer" not found in /home/amper418/shopv2.amperio.ch/vendor/shopware/elasticsearch/Admin/Indexer/PromotionAdminSearchIndexer.php:21 Stack trace: #0 {main} thrown in /home/amper418/shopv2.amperio.ch/vendor/shopware/elasticsearch/Admin/Indexer/PromotionAdminSearchIndexer.php on line 21