[Bug]: server error on chat: cosine_better_than_threshold

[promet99]

Do you need to file an issue?

• I have searched the existing issues and this bug is not already filed.
• I believe this is a legitimate bug, not just a question or feature request.

Describe the bug

When chatting on lightrag-server I keep seeing this error. (Using openai for llm, ollama for embedding)

500 Internal Server Error
"{"detail":"'NoneType' object has no attribute 'cosine_better_than_threshold'"}"
/query/stream

Steps to reproduce

No response

Expected Behavior

No response

LightRAG Config Used

Paste your config here

Logs and screenshots

No response

Additional Information

• LightRAG Version:
• Operating System:
• Python Version:
• Related Issues:

[berataydin]

Same llm configuration same error

[danielaskdd]

Please verify if the issue is resolved with the latest version.