Fix null pointer exception

public/typo3conf/ext/ep_products/Classes/Domain/Repository/FaqRepository.php

@@ -43,7 +43,7 @@ class FaqRepository extends AbstractRepository
     public function findByUids($uids)
     {
         /** @var DataMapper $dataMapper */
-        $dataMapper = GeneralUtility::makeInstance(DataMapper::class);
+        $dataMapper = $this->objectManager->get(DataMapper::class);
         $qb = $this->getDbConnection()->createQueryBuilder();
 
         $rows = $qb