# Evaluators Stopped Running - No Feedback

**URL:** <https://forum.langchain.com/t/evaluators-stopped-running-no-feedback/1480>\
**Category:** Observability & Evals\
**Created:** [September 8, 2025, 11:22pm UTC](https://forum.langchain.com/t/evaluators-stopped-running-no-feedback/1480 "2025-09-08T23:22:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rohseh303](https://avatars.discourse-cdn.com/v4/letter/r/a698b9/32.png) [@rohseh303](https://forum.langchain.com/u/rohseh303)\
**Post date:** [September 8, 2025, 11:22pm UTC](https://forum.langchain.com/t/evaluators-stopped-running-no-feedback/1480/1 "2025-09-08T23:22:32Z")

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I’m seeing my runs being sent to LangSmith and successfully populated into my tracing project. However, the feedback/evaluator I’ve enabled — called **`missing_tool_call`** — has stopped running. Up until around 12pm 9/8, the feedback was working fine. After that, no logs are showing up and I can’t see any related errors.

Error message: **{‘error’: ‘Evaluator failed to batch invoke {“detail”:“Service unavailable”}’}’**

Happy to attach some runs as well.

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**Author:** ![marco](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@marco](https://forum.langchain.com/u/marco)\
**Post date:** [September 12, 2025, 10:23am UTC](https://forum.langchain.com/t/evaluators-stopped-running-no-feedback/1480/2 "2025-09-12T10:23:52Z")

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Hi @rohseh303 ! We had an incident at that time, could you try rerunning the evaluators? Thanks! [https://status.smith.langchain.com/](https://status.smith.langchain.com/)