fix

app/Http/Controllers/QuickApp/Book/Transformers/BookTransformer.php

@@ -30,7 +30,7 @@ class BookTransformer
             'charge_type' =>  $book->charge_type ?? '',
             'force_subscribe_chapter_id' => $book->force_subscribe_chapter_seq,
             'update_time' => $book->updated_at ?? '',
-            'is_on_shelf' => $book->is_on_shelf ?? 0,
+            // 'is_on_shelf' => $book->is_on_shelf ?? 0,
             'book_price' => $book->price ?? 0,
             'keyword' => $book->keyword,
             'recommend_index' => $book->recommend_index,