[TASK] Prevent error on pages with no records (after delete)

Classes/Paginator/QueryBuilderPaginator.php

@@ -82,8 +82,8 @@ final class QueryBuilderPaginator extends AbstractPaginator {
 				->count('p.uid')
 				->execute()->fetchOne();
 		}
-		$this->setTotalItems($totalItems);
-		return $totalItems;
+		$this->setTotalItems($totalItems ?:  0);
+		return $totalItems ?:  0;
 	}
 
 	protected function getAmountOfItemsOnCurrentPage(): int {