'fix'

app/Modules/Channel/Services/ChannelRecommendBooksService.php

@@ -32,6 +32,8 @@ class ChannelRecommendBooksService
             \Log::info('count:'.$count);
             self::getRecommendBooks($channel_id,0,$count,$lists);
         }else{
+            \Log::info('return:lists');
+            \Log::info($lists);
             return $lists;
         }
     }