[BUG] <title> 前端对话出现： "NoneType' object is not subscriptable

[yaleimeng]

是否已有关于该错误的issue或讨论？ | Is there an existing issue / discussion for this?

• [X] 我已经搜索过已有的issues和讨论 | I have searched the existing issues / discussions

该问题是否在FAQ中有解答？ | Is there an existing answer for this in FAQ?

• [X] 我已经搜索过FAQ | I have searched FAQ

当前行为 | Current Behavior

只出现了参考资料。没有回答内容。报错见标题。 而且强行结束重启还是一样，知识库删除重建也没用。

期望行为 | Expected Behavior

正常结合参考资料进行回答。

运行环境 | Environment

- OS:
- NVIDIA Driver:
- CUDA:
- docker:
- docker-compose:
- NVIDIA GPU:
- NVIDIA GPU Memory:

QAnything日志 | QAnything logs

是qa.log还是 sanic_api.log 还是debug.log？

复现方法 | Steps To Reproduce

就是正常执行 ： bash ./run.sh -c local -i 0 -b vllm -m Qwen-7B-QAnything -t qwen-7b-qanything

备注 | Anything else?

No response