---
title: "Troubleshooting a Tag"
description: "Tag troubleshooting has moved to the Troubleshoot section"
source_url: https://ai-ops.com/docs/tags/troubleshooting
---

# Troubleshooting a Tag

> [!NOTE] This guide has moved
> Tag troubleshooting now lives in the **Troubleshoot** section. For bad quality, missing, or frozen values, see [Bad, Missing, or Frozen Tag Values](https://ai-ops.com/docs/troubleshoot/tag-values.md). For expression or value-mapping errors, see [Expression & Value-Mapping Errors](https://ai-ops.com/docs/troubleshoot/expressions-and-mapping.md). For trends gaps or historization, see [Data Is Stale, Frozen, or Has Gaps](https://ai-ops.com/docs/troubleshoot/stale-data.md). Not sure where to start? Begin at [Troubleshooting Koios](https://ai-ops.com/docs/troubleshoot/introduction.md).