NingHai issues

Results 2 issues of


                                            NingHai

![image](https://user-images.githubusercontent.com/82285305/159153208-dd2bbb50-5338-4f3a-8515-ccb3a555de24.png)

bug

![image](https://github.com/Tongji-KGLLM/RAG-Survey/assets/82285305/006a4b00-438e-40ae-8407-043f0f5f5091)